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 A038646 #6 Mar 16 2020 09:57:02 %S A038646 127,488,13826,103825,157466,164971,181784,189757,273628,287768, %T A038646 347824,402491,439139,884738,2376316,2738944,3306952,3375002,4173283, %U A038646 4527640,5054428,5785949,5903147,5981915,7844779,10077698,10077824,10457326,10716319,11975168,12733400 %N A038646 Gaps of 3 in sequence A038593 (upper terms). %Y A038646 Cf. A038645. %K A038646 nonn %O A038646 1,1 %A A038646 _Jeff Burch_ %E A038646 Offset changed to 1 by and more terms from _Jinyuan Wang_, Mar 16 2020