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 A173863 #6 Mar 30 2012 18:52:05 %S A173863 0,1,2,0,1,2,0,3,1,2,0,3,1,4,2,0,3,1,4,2,0,3,1,4,2,0,5,3,1,4,2,0,5,3, %T A173863 1,4,2,0,5,3,1,6,4,2,0,5,3,1,6,4,2,0,5,3,1,6,4,2,0,5,3,1,6,4,2,0,7,5, %U A173863 3,1,6,4,2,0,7,5,3,1,6,4,2,0,7,5,3,1,6,4,2,0,7,5,3,1,8,6,4,2,0,7,5,3,1,8,6,4,2,0 %N A173863 Square root of A172545(n). %Y A173863 A054073(n+2). Essentially A022337. %K A173863 nonn %O A173863 0,3 %A A173863 _Paul Curtz_, Nov 26 2010