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 A038657 #7 Mar 16 2020 22:15:03 %S A038657 866,1197,1727,3176,3904,4095,4697,4912,11618,13888,15608,16245,16254, %T A038657 16847,16856,18352,18935,19467,21168,22104,24316,29393,31031,38142, %U A038657 38647,43272,43561,49238,53135,54143,62426,63964,63999,68696,74585 %N A038657 Gaps of 9 in sequence A038593 (lower terms). %H A038657 Jinyuan Wang, <a href="/A038657/b038657.txt">Table of n, a(n) for n = 1..500</a> %Y A038657 Cf. A038658. %K A038657 nonn %O A038657 1,1 %A A038657 _Jeff Burch_ %E A038657 Offset changed to 1 by and one term corrected by _Jinyuan Wang_, Mar 16 2020