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 A175229 #2 Mar 30 2012 19:00:23 %S A175229 10,20,27,35,44,51,58,66,75,82,90,96,105,114,120,126,134,142,148,156, %T A175229 164,171,178,186,194,202 %N A175229 Delete sequence of step 4 of sieve from A175227. %C A175229 See A175227 for definition. %K A175229 nonn %O A175229 1,1 %A A175229 _Jaroslav Krizek_, Mar 07 2010