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 A134003 #6 Nov 21 2013 13:07:20 %S A134003 1,2,3,4,6,7,8,9,12,14,17,18,19,21,22,26,27,28,29,32,34,39,41,43,44, %T A134003 48,51,52,53,54,56,58,59,66,72,74,77,78,79,82,83,87,91,93,94,96,97, %U A134003 103,104,106,107,109,113,116,117,119,121,122,123,126,134,136,137,144,151,157 %N A134003 Positive integers n for which n^2+(n+5)^2 is prime. %C A134003 Conjecture. If n is in this sequence then n(n+5)=a(a+5)+b(b+5) is not solvable in integers. (This has been verified up to n=500.) See A134002 for the complement of this sequence (in the positive integers). %t A134003 Select[Range[1,200],PrimeQ[#^2+(#+5)^2]&] (* _Vladimir Joseph Stephan Orlovsky_, Feb 02 2012 *) %Y A134003 Cf. A012132, A027861, A134002. %K A134003 nonn %O A134003 1,2 %A A134003 _John W. Layman_, Oct 01 2007