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Version devBuilt at: 2026-10-10 01:38:52 EDT

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@christianp.mathstodon.xyz.ap.brid.gyOct 5, 2026, 4:31 PM

How has this only just been added to the #OEIS? https://oeis.org/A398406 "Hexadecimal expansion of the square root of 2."

@christianp.mathstodon.xyz.ap.brid.gySep 30, 2026, 9:35 AM

Searching for the phrase "only known" in the #OEIS turns up lots of lovely factoids: https://oeis.org/search?q=%22only+known%22&go=Search

@fractalkitty.comSep 24, 2026, 12:35 AM

New sequence!!! https://
oeis.org/A398869

This is my first time submitting.

#oeis #math #sequence #quilting

13x13 Mrs. Perkins' Quilt comprised of blue, red, pink, and fall colored fabrics with the largest square in the upper left (7 in), the the two red 6 squares in the top right and lower left and smaller blue, white and floral blocks in the lower right.
@fractalkitty.comSep 18, 2026, 5:03 AM

Finished a Mrs Perkins' mini-quilt by hand (talk about hyperfocus).

www.fractalkitty.com/mrs-perkins-...

#quilt #mathArt #seams #oeis #squaringTheSquare #squarable #dissection

@christianp.mathstodon.xyz.ap.brid.gySep 8, 2026, 8:13 AM

This week's Rutgers Experimental Mathematics seminar is Neil Sloane, prompted by the #OEIS soon reaching 400,000 sequences.
17:00 EST (UTC-4), September 10th.
https://sites.math.rutgers.edu/~zeilberg/expmath/