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 A137620 #3 Mar 18 2013 10:36:51 %S A137620 1,2,3,5,6,7,8,10,11,13,14,16,18,19,21,23,25,26,28,30,32,34,36,38,40, %T A137620 42,44,47,49,51,53,55,58,60,62,65,67,70,72,74,77,79,82,84,87,90,92,95, %U A137620 97,100,103,105,108,111,114,116,119,122,125,128,131,134,136 %N A137620 Smallest k such that k! >= A058694(n). %Y A137620 Cf. A058694, A073071, A132018. %K A137620 nonn %O A137620 1,2 %A A137620 _R. J. Mathar_, May 01 2008