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 A289955 #11 Jul 17 2017 02:53:36
%S A289955 135135,11486475,583783200,23434451040,828052325100,27221423409180,
%T A289955 859752405431920,26617555964919920,818486200464162230,
%U A289955 25221598500336187950,783666055857936771520,24658659357394687609600,788174700361283653718300,25647112073453527447490700
%N A289955 Number of permutations of [n] having exactly seven nontrivial cycles.
%C A289955 A nontrivial cycle has size > 1.
%H A289955 Alois P. Heinz, <a href="/A289955/b289955.txt">Table of n, a(n) for n = 14..450</a>
%H A289955 Wikipedia, <a href="https://en.wikipedia.org/wiki/Permutation">Permutation</a>
%F A289955 E.g.f.: (-log(1-x)-x)^7/7!*exp(x).
%t A289955 Drop[CoefficientList[Series[(-Log[1 - x] - x)^7/7!*Exp[x] , {x, 0, 50}], x] * Table[k !, {k, 0, 50}] , 14] (* _Indranil Ghosh_, Jul 16 2017 *)
%o A289955 (PARI) x = 'x + O('x^30); Vec(serlaplace((-log(1-x)-x)^7/7!*exp(x))) \\ _Michel Marcus_, Jul 16 2017
%Y A289955 Column k=7 of A136394.
%K A289955 nonn
%O A289955 14,1
%A A289955 _Alois P. Heinz_, Jul 16 2017