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 A383457 #3 May 02 2025 17:47:35 %S A383457 12,110,702,3850,19448,93366,433160,1961256 %N A383457 Column 2 of the array in A383453. %Y A383457 Cf. A383453. %K A383457 nonn,more %O A383457 0,1 %A A383457 _N. J. A. Sloane_, May 02 2025