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 A112490 #4 Oct 12 2012 14:40:24 %S A112490 105,3465,78750,1571570,29957620,566780500,10855452608,212784652080, %T A112490 4295131560720,89593039854864,1934882739672480,43302005440341984, %U A112490 1004506274408605056,24150861883489332096,601561456166534637312 %N A112490 Fifth column of triangle A112486 used for e.g.f.s of |Stirling1|=|A008275| diagonals. %F A112490 a(n)= A112486(n, 4), n>=4. a(0), ..., a(3) = 0. %F A112490 a(n)= (n+4)*a(n-1) + (n+3)* A112489(n-1), n>=4, a(3):=0. %e A112490 78750 = a(6) = 10*3465 + 9*4900. %K A112490 nonn,easy %O A112490 4,1 %A A112490 _Wolfdieter Lang_, Sep 12 2005