This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A325936 #14 Sep 20 2019 03:55:15 %S A325936 0,0,1,0,1,1,2,2,9,13,37,81,205,512,1335,3404,8922,23592,62630,167622 %N A325936 a(n) is the number of creatures that can be made from exactly n Palago tiles. %C A325936 A "creature" in Palago is a closed shape of a single color across several Palago tiles, perhaps with one or more holes. %C A325936 A Palago tile is a hexagonal tile with four regions of alternating colors. See links for illustrations. %C A325936 Creatures are counted up to rotation, reflection, and swapping colors. %H A325936 Cameron Browne, <a href="http://cambolbro.com/games/palago/creature-counts/">Counting Creatures</a> %H A325936 Code Golf Stack Exchange, <a href="https://codegolf.stackexchange.com/q/193011/53884">Counting creatures on a hexagonal tiling</a> %Y A325936 Cf. A000228. %K A325936 nonn,more %O A325936 1,7 %A A325936 _Peter Kagey_, Sep 09 2019