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 A356027 #26 May 06 2025 16:23:00 %S A356027 1,0,1,0,2,1,0,2,3,1,0,4,6,4,1,0,2,9,10,5,1,0,6,15,20,15,6,1,0,4,18, %T A356027 34,35,21,7,1,0,6,27,56,70,56,28,8,1 %N A356027 Duplicate of A101391. %K A356027 dead %O A356027 1,5