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 A361237 #9 Mar 11 2023 00:13:54 %S A361237 1,1,1,5,33,230,1827,15466,137085,1260545,11930690,115607310, %T A361237 1142333751,11475243990,116910923720,1205717972880,12567935262965, %U A361237 132238934938755,1403053736656275,14997682223032473,161392162120990570,1747309339397241620,19021521745371642498 %N A361237 Number of nonequivalent noncrossing triangular cacti with n triangles up to rotation. %H A361237 Andrew Howroyd, <a href="/A361237/b361237.txt">Table of n, a(n) for n = 0..500</a> %Y A361237 Column 3 of A361236. %Y A361237 Cf. A361240. %K A361237 nonn %O A361237 0,4 %A A361237 _Andrew Howroyd_, Mar 05 2023