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 A253053 #5 Jan 01 2015 12:20:18 %S A253053 25,85,95,115,265,335,365,505,545,565,655,755,785,835,895,985,1115, %T A253053 1135,1285,1345,1405,1555,1655,1685,1735,1765,1795,1835,1865,1985, %U A253053 2005,2105,2155,2215,2315,2395,2455,2515,2605,2785,2815,2935,3065,3095,3205,3215 %N A253053 If, for some m, A098550(m-2) is a prime p and A098550(m) = 5p, add 5p to the sequence. %C A253053 A subsequence of A251544 (and of course of A098550). %Y A253053 Cf. A098550, A251544, A253052, A253054. %K A253053 nonn %O A253053 1,1 %A A253053 _N. J. A. Sloane_, Jan 01 2015