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 A133119 #10 Aug 21 2014 18:00:59
%S A133119 120,1050,12712,141876,1418400,17061660,212254548,2735287698,
%T A133119 37354035628,581350330470,8895742806480,151305163230480,
%U A133119 2659183039338192,50112909523522476,976443721325014300,20413628375979803370,434137453618439716068
%N A133119 Number of permutations of [n] with 3 cycle lengths.
%H A133119 Alois P. Heinz, <a href="/A133119/b133119.txt">Table of n, a(n) for n = 6..200</a>
%F A133119 We obtain e.g.f. for number of permutations of [n] with m cycle lengths if we substitute x(i) with -Sum_{k>0} ((1-exp(x^k/k))^i in cycle index Z(S(m); x(1),x(2),..,x(m)) of symmetric group S(m) of degree m.
%Y A133119 Cf. A005225, A005772, A038041, A088142.
%Y A133119 Column k=3 of A218868.
%K A133119 easy,nonn
%O A133119 6,1
%A A133119 _Vladeta Jovovic_, Sep 18 2007
%E A133119 More terms from _Max Alekseyev_, Feb 08 2010