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 A158456 #16 May 26 2024 20:54:22 %S A158456 1,2,1,3,2,4,1,3,5,2,4,1,6,3,5,2,7,4,1,6,3,8,5,2,7,4,1,9,6,3,8,5,2,10, %T A158456 7,4,1,9,6,3,11,8,5,2,10,7,4,12,1,9,6,3,11,8,5,13,2,10,7,4,12,1,9,6, %U A158456 14,3,11,8,5,13,2,10,7,15,4,12,1,9,6,14,3,11,8,16,5,13,2,10,7,15,4,12,1,9,17 %N A158456 Duplicate of A191475. %K A158456 dead %O A158456 1,2