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 A204088 #9 Feb 28 2014 09:20:11 %S A204088 1,2,4,8,12,32,24,100,132,188,148,1168,708,3200,2344,1488,2120,21456, %T A204088 16596,222948,130572,38196,29800,492248,299096,529712,455424,1143404, %U A204088 920536,20232316,13769088,226481600,252603072,52242944,40457056,28671168,16885280 %N A204088 Row sums of A204087. %C A204088 If n is prime, then a(n)==2 mod n. Up to n=200, there are only two composite numbers with such a property: a(49)=623017500436==2 mod 49 and a(51)=391496243228==2 mod 51. %Y A204088 Cf. A204087, A186430, A202917, A202941, A203269, A203278. %K A204088 nonn %O A204088 0,2 %A A204088 _Vladimir Shevelev_ and _Peter J. C. Moses_, Jan 10 2012