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 A159194 #2 Mar 30 2012 17:26:29 %S A159194 1,4,8,2,7,3,31,11,12,21,13,95,23,96,25,24,26,78,22,64,79,14,81,32,65, %T A159194 71,33,97,98,66,82,67,99,34,83,301,35,72,68,69,36,245,73,302,201,37, %U A159194 303,304,246,247,305,74,248,202,203,306,249,38,204,251,39,41,42,205,75,76 %N A159194 a(n) = sqrt(A155985(n)). %C A159194 1. Sequence is infinite. %C A159194 2. First absent numbers are: %C A159194 5, 6, 9, 10, 15, 16, 17, 18, 19, 20, 27, 28, 29, 30, 40, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 70, 80, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 100. %Y A159194 A155985 %K A159194 nonn %O A159194 1,2 %A A159194 _Zak Seidov_, Apr 05 2009