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 A109392 #2 Mar 30 2012 17:36:43
%S A109392 0,1,13,175,2735,49610,1029386,24088590,628068366,18061990371,
%T A109392 568061990371,19398632250697,714854467214665,28276489167109688,
%U A109392 1195037205850701368,53742304051553826368,2562499498076052846144
%N A109392 Partial sums of A109391.
%C A109392 The sum of all the terms of all A001923(n) sequences having up to n terms all chosen from {1,2,...,n}.
%Y A109392 Cf. A109391, A001923 (sum k^k, k=1..n).
%K A109392 nonn
%O A109392 0,3
%A A109392 _Rick L. Shepherd_, Jun 27 2005