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 A162220 #3 Mar 30 2012 17:28:42 %S A162220 1,1,1,1,3,3,3,3,5,5,3,3,3,3,4,7,7,4,9,9,6,11,11,7,7,7,7,7,7,8,13,13, %T A162220 8,8,9,9,15,15,9,9,17,17,19,19,12,21,21,13,13,13,13,13,13,13,23,23,15, %U A162220 25,25,15,15,15,16,16,16,27,27,17,17,17,17,29,29,18,18,18,31,31,33,33,35 %N A162220 Corresponding exponents for A162219. %H A162220 Joseph Myers, <a href="/A162220/b162220.txt">Table of n, a(n) for n=1..6778</a> %Y A162220 Cf. A162219, A033836, A162221. In other bases: A162217 (base 3), A162223 (base 5), A162226 (base 6), A162229 (base 7), A162232 (base 8), A162235 (base 9), A046074 (base 10). %K A162220 base,nonn %O A162220 1,5 %A A162220 _Joseph Myers_, Jun 28 2009