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 A038642 #15 Mar 18 2020 02:58:10 %S A038642 18,6,11,24,5,65,2,20,49,28,3,1,538,457,23,31,13,230,4,14,30,69,1138, %T A038642 152,12,40,39,7,94,92,1037,116,46,36,96,103,42,309,199,1411,943,315, %U A038642 125,26,64,169,48,625,354,3482,29,163,19,170,37,45,87,154,641,974,136 %N A038642 Least k such that k-th and (k+1)-st term of A038593 are the first consecutive pair that differ by n. %H A038642 Jinyuan Wang, <a href="/A038642/b038642.txt">Table of n, a(n) for n = 1..1000</a> %Y A038642 Cf. A038593, A038661. %K A038642 nonn %O A038642 1,1 %A A038642 _Jeff Burch_ %E A038642 Offset changed to 1 by _Jinyuan Wang_, Mar 16 2020