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/
See my blog post for more details: https://peterkagey.com/blog/2021/03/parity-bitmaps-from-the-oeis/
OEIS sequence A115409 by Reinhard Zumkeller (January 2006).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
November 14, 2025 at 7:50 AM
OEIS sequence A115409 by Reinhard Zumkeller (January 2006).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A082492 by Michael Joseph Halm (April 2003).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
November 12, 2025 at 8:48 AM
OEIS sequence A082492 by Michael Joseph Halm (April 2003).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A101330 by N. J. A. Sloane (January 2005).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
November 8, 2025 at 10:44 AM
OEIS sequence A101330 by N. J. A. Sloane (January 2005).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A075348 by Amarnath Murthy (September 2002).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
November 6, 2025 at 11:42 AM
OEIS sequence A075348 by Amarnath Murthy (September 2002).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A073915 by Amarnath Murthy (August 2002).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
November 5, 2025 at 12:11 PM
OEIS sequence A073915 by Amarnath Murthy (August 2002).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A079025 by Alford Arnold (February 2003).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
October 31, 2025 at 2:36 PM
OEIS sequence A079025 by Alford Arnold (February 2003).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A091491 by Paul D. Hanna (January 2004).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
October 30, 2025 at 3:05 PM
OEIS sequence A091491 by Paul D. Hanna (January 2004).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A057145 by N. J. A. Sloane (September 2000).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
October 29, 2025 at 3:34 PM
OEIS sequence A057145 by N. J. A. Sloane (September 2000).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A096145 by Reinhard Zumkeller (July 2004).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
October 28, 2025 at 4:03 PM
OEIS sequence A096145 by Reinhard Zumkeller (July 2004).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
Reposted by OEIS Parity Triangles
I made a RSS feed that to see when new sequences are posted to the On-Line Encyclopedia of Integer Sequences (OEIS).
For example, if you want to see all of my new sequences or all those with keyword "nice", subscribe to
api.peterkagey.com/oeis_feed.xm...
api.peterkagey.com/oeis_feed.xm...
For example, if you want to see all of my new sequences or all those with keyword "nice", subscribe to
api.peterkagey.com/oeis_feed.xm...
api.peterkagey.com/oeis_feed.xm...
October 25, 2025 at 6:50 PM
I made a RSS feed that to see when new sequences are posted to the On-Line Encyclopedia of Integer Sequences (OEIS).
For example, if you want to see all of my new sequences or all those with keyword "nice", subscribe to
api.peterkagey.com/oeis_feed.xm...
api.peterkagey.com/oeis_feed.xm...
For example, if you want to see all of my new sequences or all those with keyword "nice", subscribe to
api.peterkagey.com/oeis_feed.xm...
api.peterkagey.com/oeis_feed.xm...
OEIS sequence A116861 by Emeric Deutsch (February 2006).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
October 25, 2025 at 5:30 PM
OEIS sequence A116861 by Emeric Deutsch (February 2006).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A066340 by Wouter Meeussen (January 2002).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
October 24, 2025 at 5:59 PM
OEIS sequence A066340 by Wouter Meeussen (January 2002).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
OEIS sequence A106351 by Christian G. Bower (April 2005).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
October 23, 2025 at 10:37 AM
OEIS sequence A106351 by Christian G. Bower (April 2005).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)