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 A296342 #12 Dec 13 2017 01:33:57 %S A296342 0,1,2,8,10,12,18,21,37,43,51,52,56,95,99,101,102,135,147,192,193,217, %T A296342 222,224,270,299,330,340,374,407,443,456,519,546,557,558,674,675,703, %U A296342 704,735,736,865,866,917,918,971,1025,1026,1120,1179,1198,1301,1342 %N A296342 a(n) = index of first n in A274820. %H A296342 Rémy Sigrist, <a href="/A296342/b296342.txt">Table of n, a(n) for n = 0..2500</a> %H A296342 Rémy Sigrist, <a href="/A296342/a296342.gp.txt">PARI program for A296342</a> %o A296342 (PARI) See Links section. %Y A296342 Cf. A274820. %K A296342 nonn %O A296342 0,3 %A A296342 _N. J. A. Sloane_, Dec 12 2017 %E A296342 More terms from _Rémy Sigrist_, Dec 12 2017