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 A275417 #11 Jul 28 2016 22:37:46 %S A275417 26459,37304,47669,57600,63315,71091,86324,88244,92204,92663,115191, %T A275417 132066,136065,138194,142748,170289,252090,283829,296226,316965, %U A275417 323873,336104,369585,372878,385650,389024,393444,408645,438683,471540,487710,498974,544580,562275 %N A275417 a(n) = (A259756(n)-1)/8. %C A275417 For all n, 2*a(n)+1 is prime. %Y A275417 Cf. A259756. %K A275417 nonn %O A275417 1,1 %A A275417 _Zak Seidov_, Jul 28 2016