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 A096454 #5 Apr 19 2016 01:07:34 %S A096454 11,17,23,41,47,59,67,83,103,109,137,149,157,167,179,191,197,211,227, %T A096454 233,257,269,277,307,389,401,419,431,439,499,563,587,599,607,617,631, %U A096454 661,677,691,727,739,761,773,797,811,853,859,883,907,937,1171,1289,1297 %N A096454 Primes p such that the number of primes q, 7 <= q < p, congruent to 1 or 2 mod 5, is one more than the number of such primes congruent to 3 or 4 mod 5. %Y A096454 Cf. A096447-A096455. %K A096454 nonn,easy %O A096454 1,1 %A A096454 _Yasutoshi Kohmoto_, Aug 12 2004 %E A096454 More terms and better definition from _Joshua Zucker_, May 21 2006