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 A348256 #6 Oct 22 2021 11:56:13 %S A348256 1,2,3,4,5,6,11,12,14,15,21,36,39,45,57,87,203,319,429,435,517,530, %T A348256 710,790,1310,1730,2290,3370,3830,4210,7430,7570,9530,9710,13010, %U A348256 44810,70270 %N A348256 Indices of records in A348249. %H A348256 Rémy Sigrist, <a href="/A348256/a348256.txt">C program for A348256</a> %o A348256 (C) See Links section. %Y A348256 Cf. A307720, A307730, A348246, A348409, A348249, A348252-A348255. %K A348256 nonn,more %O A348256 1,2 %A A348256 _N. J. A. Sloane_, Oct 21 2021 %E A348256 a(35)-a(37) from _Rémy Sigrist_, Oct 22 2021