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 A038658 #7 Mar 16 2020 22:14:17 %S A038658 875,1206,1736,3185,3913,4104,4706,4921,11627,13897,15617,16254,16263, %T A038658 16856,16865,18361,18944,19476,21177,22113,24325,29402,31040,38151, %U A038658 38656,43281,43570,49247,53144,54152,62435,63973,64008,68705,74594 %N A038658 Gaps of 9 in sequence A038593 (upper terms). %H A038658 Jinyuan Wang, <a href="/A038658/b038658.txt">Table of n, a(n) for n = 1..500</a> %Y A038658 Cf. A038657. %K A038658 nonn %O A038658 1,1 %A A038658 _Jeff Burch_ %E A038658 Offset changed to 1 by and one term corrected by _Jinyuan Wang_, Mar 16 2020