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 A126790 #3 Oct 12 2012 14:38:24 %S A126790 17,41,73,83,89,97,103,109,113,137,163,167,179,193,227,233,239,241, %T A126790 251,257,271,281,293,307,313,337,353,359,379,389,401,409,433,439,443, %U A126790 449,457,467,479,487,499,503,521,541,563,569,577,587,593,601,613,617,619 %N A126790 Prime numbers that are not Higgs' primes (numbers in A000040 not in A007459). %H A126790 Wikipedia, <a href="http://en.wikipedia.org/wiki/Higgs_prime">Higgs prime</a>. %e A126790 a(1) = 17 because 4 * 9 * 25 * 49 * 121 * 169 = 901800900 and 901800900 is congruent to 4 mod (17 - 1). %t A126790 (* After running the program given at A007459 *) Complement[Prime[Range[144]], A007459] %Y A126790 Cf. A007459. %K A126790 nonn %O A126790 1,1 %A A126790 _Alonso del Arte_, Feb 19 2007