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 A144572 #4 Mar 31 2012 23:01:02 %S A144572 2,5,11,17,41,59,73,83,97,127,179,191,227,283,353,389,431,461,563,571, %T A144572 599,661,727,751,797,877,947,1031,1087,1093,1103,1129,1217,1297,1303, %U A144572 1409,1453,1483,1523,1543,1567,1697,1741,1753,1787,1801,1823,1867,1913 %N A144572 Primes of the form nonprime(prime(n))+1, where n-th nonprime = A141468(n) and first nonprime = 0. %K A144572 nonn,easy,less %O A144572 1,1 %A A144572 _Juri-Stepan Gerasimov_, Jan 06 2009 %E A144572 Extended by _Charles R Greathouse IV_, Mar 29 2010