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 A348253 #5 Oct 21 2021 07:44:44 %S A348253 1,2,3,4,5,7,10,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79, %T A348253 83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173, %U A348253 179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293 %N A348253 Indices of records in A348246. %Y A348253 Cf. A307720, A307730, A348246, A348409, A348249, A348252-A348256. %K A348253 nonn %O A348253 1,2 %A A348253 _N. J. A. Sloane_, Oct 21 2021