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 A173135 #5 May 13 2013 01:49:13 %S A173135 2,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97, %T A173135 101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181, %U A173135 191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271 %N A173135 Primes other than 3 and 5. %o A173135 (PARI) a(n)=if(n>1,prime(n+2),2) \\ _Charles R Greathouse IV_, Aug 26 2011 %Y A173135 Cf. A173037, A173092. %K A173135 nonn,easy %O A173135 1,1 %A A173135 _Juri-Stepan Gerasimov_, Feb 10 2010 %E A173135 Better definition from _Charles R Greathouse IV_, Mar 24 2010, corrected Apr 22 2010