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 A120281 #2 Mar 31 2012 13:20:27 %S A120281 4,8,83,2296,10861936,1411410779,60443686054995,18373508669927544, %T A120281 3194533046674386845000,858410779506468749371519333771, %U A120281 745094155915562576848262528092832 %N A120281 Logarithmic numbers A002104[p+1] divided by p=Prime[n]. %F A120281 a(n) = Sum[Sum[m!/k!,{k,0,m}],{m,0,Prime[n]}]/Prime[n]. a(n) = A002104[p+1]/p, where p=Prime[n]. %t A120281 Table[Sum[Sum[m!/k!,{k,0,m}],{m,0,Prime[n]}]/Prime[n],{n,1,15}] %Y A120281 Cf. A002104, A000522. %K A120281 nonn %O A120281 1,1 %A A120281 _Alexander Adamchuk_, Jul 05 2006