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 A055536 #8 Jul 02 2025 16:01:59
%S A055536 1,8,29,82,198,426,841,1556,2726,4568,7373,11522,17507,25958,37658,
%T A055536 53582,74924,103130,139938,187426,248044,324678,420698,540014,687141,
%U A055536 867274,1086343,1351108,1669234,2049376,2501275,3035866,3665362
%N A055536 Number of asymmetric types of (3,n)-hypergraphs under action of symmetric group S_3.
%F A055536 G.f.: (1/(1-x)^8-3/(1-x)^4/(1-x^2)^2+2/(1-x)^2/(1-x^3)^2)/6.
%e A055536 There are 8 asymmetric (3,3)-hypergraphs: {{1,2},{1,2},{1,3}}, {{1},{1,2},{1,2,3}}, {{1},{1,2},{1,2}}, {{1},{1},{1,2}}, {{1},{1,2},{2,3}}, {{1},{2},{1,3}}, {{1},{1},{2}}, {0,{1},{1,2}}.
%Y A055536 Cf. A002727.
%K A055536 nonn
%O A055536 2,2
%A A055536 _Vladeta Jovovic_, Jul 09 2000
%E A055536 More terms from _James Sellers_, Jul 11 2000