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 A262256 #31 Nov 22 2018 20:21:58 %S A262256 0,1,2,0,3,6,1,3,5,0,4,8,1,4,7,3,4,5,0,9,18,1,9,17,3,9,15,4,9,14,0,10, %T A262256 20,1,10,19,3,10,17,4,10,16,9,10,11,0,12,24,1,12,23,3,12,21,4,12,20,9, %U A262256 12,15,10,12,14,0,13,26,1,13,25,3,13,23,4,13,22 %N A262256 List of arithmetic triples a<b<c (three numbers in arithmetic progression) such that a and b are contained in A005836. %C A262256 The values a(3n) are A262096. %H A262256 Max Barrentine, <a href="/A262256/b262256.txt">Rows = 1..6048, flattened</a> %H A262256 Max Barrentine, <a href="/A262256/a262256.txt">Rows 1 to 2016</a> %e A262256 0, 1, 2; %e A262256 0, 3, 6; %e A262256 1, 3, 5; %e A262256 0, 4, 8; %e A262256 ... %Y A262256 Cf. A005836, A074940, A262096. %K A262256 nonn,tabf,base %O A262256 1,3 %A A262256 _Max Barrentine_, Sep 15 2015 %E A262256 Name edited by _Max Barrentine_, May 24 2016