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 A031327 #6 May 25 2024 23:05:24 %S A031327 2,8,19,35,57,70,73,93,94,98,106,109,118,126,131,132,144,145,163,171, %T A031327 187,193,234,238,249,260,265,269,273,275,287,291,302,310,316,318,327, %U A031327 331,332,349,354,358,362,371,372,374,390,392 %N A031327 Position of n-th 2 in A031324. %Y A031327 Cf. A031324. %K A031327 nonn %O A031327 1,1 %A A031327 _Clark Kimberling_