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 A224865 #21 Jul 31 2013 23:40:56 %S A224865 1,2,8,17,25,30,32,36,44,46,64,69,72,73,83,88,97,99,106,107,116,118, %T A224865 120,122,123,129,132,135,151,184,186,190,198,205,211,220,233,239,253, %U A224865 255,262,282,296,305,314,317,331,342,347,352,365,374,382,384,391,396,409 %N A224865 Numbers n such that 90*n + 89 and 90*n + 91 are twin primes. %F A224865 A202116 INTERSECT A181732+1; A202116 INTERSECT A224889 %Y A224865 Cf. A202116, A181732, A224889. %K A224865 nonn %O A224865 1,2 %A A224865 _J. W. Helkenberg_, Jul 22 2013