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 A293197 #11 Oct 03 2017 14:32:50 %S A293197 1,1,3,13,73,501,4050,37632,394296,4595976,58932720,823949280, %T A293197 12467513520,202933851120,3534322952160,65559527953920, %U A293197 1290129736896000,26840074522060800,588476031700677120,13560642403296468480,327603687047488051200,8278733693718654566400 %N A293197 E.g.f.: Product_{m>0} (1+x^m+x^(2*m)/2!+x^(3*m)/3!+x^(4*m)/4!+x^(5*m)/5!). %H A293197 Seiichi Manyama, <a href="/A293197/b293197.txt">Table of n, a(n) for n = 0..444</a> %p A293197 b:= proc(n, i) option remember; `if`(n=0, 1, `if`(i<1, 0, %p A293197 add(b(n-i*j, i-1)/j!, j=0..min(5, n/i)))) %p A293197 end: %p A293197 a:= n-> n!*b(n$2): %p A293197 seq(a(n), n=0..23); # _Alois P. Heinz_, Oct 02 2017 %Y A293197 Column k=5 of A293135. %K A293197 nonn %O A293197 0,3 %A A293197 _Seiichi Manyama_, Oct 02 2017