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 A038660 #9 Apr 18 2023 15:49:11 %S A038660 397,1216,1657,3169,5419,6938,9045,10432,10449,12881,13095,15608, %T A038660 18954,22969,23507,24813,25299,32562,39807,44297,44469,50626,50786, %U A038660 51319,56512,58329,61931,75367,81191,90792,115264,120195,124973,124983,130464,131301,135063 %N A038660 Gaps of 10 in sequence A038593 (upper terms). %H A038660 Jinyuan Wang, <a href="/A038660/b038660.txt">Table of n, a(n) for n = 1..300</a> %Y A038660 Cf. A038593, A038659. %K A038660 nonn %O A038660 1,1 %A A038660 _Jeff Burch_ %E A038660 Offset changed to 1 by and terms corrected by _Jinyuan Wang_, Mar 16 2020