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 A308019 #12 May 16 2019 03:08:46 %S A308019 1,2,3,4,5,6,7,10,13,16,19,22,25,28,31,34,37,42,45,48,51,54,57,60,63, %T A308019 66,69,74,79,82,85,88,91,94,97,100,103,106,109,112,115,118,121,124, %U A308019 127,130,133,136,139,142,145,148,151,154,157,160,163,166,169,172 %N A308019 List of x-coordinates of successive points on the higher of the two lines formed by the terms of A308007. %C A308019 See A308007 and A308016 for further information about the two lines. %H A308019 N. J. A. Sloane, <a href="/A308019/b308019.txt">Table of n, a(n) for n = 1..1578</a> %Y A308019 Cf. A081145, A308007, A308016, A308017-A308020. %K A308019 nonn %O A308019 1,2 %A A308019 _N. J. A. Sloane_, May 15 2019