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 A317539 #10 Aug 14 2018 00:38:01 %S A317539 2,3,8,10,11,15,17,22,23,27,32,34,38,39,41,46,47,51,56,58,59,63,65,70, %T A317539 74,75,80,82,86,87,89,94,95,99,104,106,107,111,113,118,119,123,128, %U A317539 130,134,135,137,142,146,147,152,154,155,159,161,166,170,171,176,178,182,183,185,190,191,195,200,202 %N A317539 Indices m for which A317413(m) = 3. %H A317539 A.H.M. Smeets, <a href="/A317539/b317539.txt">Table of n, a(n) for n = 1..20000</a> %F A317539 a(n) = 3*(n-1) + A317540(n). %Y A317539 Cf. A317413, A317538, A317540. %K A317539 nonn %O A317539 1,1 %A A317539 _A.H.M. Smeets_, Jul 30 2018