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 A112491 #3 Oct 12 2012 14:40:24 %S A112491 945,45045,1406790,37147110,909508600,21577556000,508072685120, %T A112491 12041790080320,289769457978000,7118294418969552,179128660433168160, %U A112491 4627741977903371040,122904955276454869056,3358132932795227294400 %N A112491 Sixth column of triangle A112486 used for e.g.f.s of |Stirling1|=|A008275| diagonals. %F A112491 a(n)= A112486(n, 5), n>=5. a(0), ..., a(4) = 0. %F A112491 a(n)= (n+5)*a(n-1) + (n+4)* A112490(n-1), n>=5, a(4):=0. %e A112491 1406790 = a(7) = 12*45045 + 11*78750. %K A112491 nonn,easy %O A112491 5,1 %A A112491 _Wolfdieter Lang_, Sep 12 2005