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 A055788 #7 Jul 02 2025 16:02:00 %S A055788 1,31,186,1581,7316,30039,103974,330429,947050,2533289,6325550, %T A055788 14969435,33665380,72544185,150236850,300540195,582235491,1096087770, %U A055788 2009383420,3595937070,6292703640,10787811210,18142828740,29975617710 %N A055788 Number of symmetric types of (5,2n)-hypergraphs under action of complementing group C(5,2). %F A055788 G.f.: (62/(1-x^2)^16-310/(1-x^4)^8+1240/(1-x^8)^4-1984/(1-x^16)^2+1024/(1-x^32))/32. %Y A055788 Cf. A051502. %K A055788 nonn %O A055788 0,2 %A A055788 _Vladeta Jovovic_, Jul 13 2000 %E A055788 More terms from _James Sellers_, Aug 22 2000