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 A093677 #3 Mar 30 2012 18:36:40 %S A093677 1,2,3,6,7,10,14,24,27,30,42,44,58,68,104,120,147,150,230,164,254,256, %T A093677 436,240,346,356,604,408,680,696,1272,720,987,990,1694,1004,1786,1720, %U A093677 3316,1080,1886,1888,3696,1872,3772,3576,7608,1560,2530,2540,4828,2592 %N A093677 Self-convolution of A093659, which is the first column of triangle A093658. %C A093677 A093659 consists only of factorial numbers, where A093659(2^n) = n!. %F A093677 a(2^n) = (n+1)! %Y A093677 Cf. A093658, A093659. %K A093677 nonn %O A093677 1,2 %A A093677 _Paul D. Hanna_, Apr 09 2004