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OEIS Parity Triangles

@oeistriangles.peterkagey.com

A bot by @peterkagey.com that posts a Parity Triangle from the OEIS every day. See my blog post for more details: https://peterkagey.com/blog/2021/03/parity-bitmaps-from-the-oeis/

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22.03.2025
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Latest posts by OEIS Parity Triangles @oeistriangles.peterkagey.com

OEIS triangle for sequence A300380.

OEIS triangle for sequence A300380.

OEIS sequence A300380 by R. H. Hardin (March 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

11.03.2026 20:29 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A317572.

OEIS triangle for sequence A317572.

OEIS sequence A317572 by R. H. Hardin (July 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

10.03.2026 20:58 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A316239.

OEIS triangle for sequence A316239.

OEIS sequence A316239 by R. H. Hardin (June 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

09.03.2026 21:27 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A309748.

OEIS triangle for sequence A309748.

OEIS sequence A309748 by Mohammad Hadi Shekarriz (August 2019).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

08.03.2026 21:56 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
OEIS triangle for sequence A293087.

OEIS triangle for sequence A293087.

OEIS sequence A293087 by R. H. Hardin (September 2017).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

07.03.2026 22:25 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A120568.

OEIS triangle for sequence A120568.

OEIS sequence A120568 by Paul D. Hanna (June 2006).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

06.03.2026 22:54 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A105475.

OEIS triangle for sequence A105475.

OEIS sequence A105475 by Emeric Deutsch (April 2005).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

05.03.2026 23:23 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A288627.

OEIS triangle for sequence A288627.

OEIS sequence A288627 by Andrew Howroyd (June 2017).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

04.03.2026 23:52 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A300342.

OEIS triangle for sequence A300342.

OEIS sequence A300342 by R. H. Hardin (March 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

04.03.2026 00:21 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A303016.

OEIS triangle for sequence A303016.

OEIS sequence A303016 by R. H. Hardin (April 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

03.03.2026 00:50 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A297637.

OEIS triangle for sequence A297637.

OEIS sequence A297637 by R. H. Hardin (January 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

02.03.2026 01:19 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A143395.

OEIS triangle for sequence A143395.

OEIS sequence A143395 by Alois P. Heinz (August 2008).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

01.03.2026 01:48 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A327244.

OEIS triangle for sequence A327244.

OEIS sequence A327244 by Alois P. Heinz (September 2019).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

28.02.2026 02:17 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A295097.

OEIS triangle for sequence A295097.

OEIS sequence A295097 by R. H. Hardin (November 2017).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

27.02.2026 02:46 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A299852.

OEIS triangle for sequence A299852.

OEIS sequence A299852 by R. H. Hardin (February 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

26.02.2026 03:15 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A288620.

OEIS triangle for sequence A288620.

OEIS sequence A288620 by Andrew Howroyd (June 2017).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

25.02.2026 03:44 ๐Ÿ‘ 4 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
OEIS triangle for sequence A222730.

OEIS triangle for sequence A222730.

OEIS sequence A222730 by Alois P. Heinz (March 2013).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

24.02.2026 04:13 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A305457.

OEIS triangle for sequence A305457.

OEIS sequence A305457 by R. H. Hardin (June 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

23.02.2026 04:42 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A331569.

OEIS triangle for sequence A331569.

OEIS sequence A331569 by Andrew Howroyd (January 2020).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

22.02.2026 05:11 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A279409.

OEIS triangle for sequence A279409.

OEIS sequence A279409 by Andrey Zabolotskiy (December 2016).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

21.02.2026 05:40 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A181971.

OEIS triangle for sequence A181971.

OEIS sequence A181971 by Reinhard Zumkeller (July 2012).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

20.02.2026 06:09 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A132749.

OEIS triangle for sequence A132749.

OEIS sequence A132749 by Gary W. Adamson (August 2007).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

16.02.2026 14:43 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A049600.

OEIS triangle for sequence A049600.

OEIS sequence A049600 by Clark Kimberling.

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

15.02.2026 15:12 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A299602.

OEIS triangle for sequence A299602.

OEIS sequence A299602 by R. H. Hardin (February 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

14.02.2026 15:41 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A304479.

OEIS triangle for sequence A304479.

OEIS sequence A304479 by R. H. Hardin (May 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

13.02.2026 16:10 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A233513.

OEIS triangle for sequence A233513.

OEIS sequence A233513 by T. D. Noe (January 2014).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

12.02.2026 16:39 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A332347.

OEIS triangle for sequence A332347.

OEIS sequence A332347 by Andrew Howroyd (February 2020).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

11.02.2026 17:08 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A282481.

OEIS triangle for sequence A282481.

OEIS sequence A282481 by R. H. Hardin (February 2017).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

10.02.2026 17:37 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A317741.

OEIS triangle for sequence A317741.

OEIS sequence A317741 by R. H. Hardin (August 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

09.02.2026 18:06 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
OEIS triangle for sequence A317525.

OEIS triangle for sequence A317525.

OEIS sequence A317525 by R. H. Hardin (July 2018).

(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)

08.02.2026 18:35 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0