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 A105734 #12 May 21 2024 13:13:00
%S A105734 1,1,2,3,2,1,1,2,3,2,1,1,2,3,2,1,1,2,3,2,1,1
%N A105734 Duplicate of A076839.
%C A105734 Previous name was: For n>2, a(n) > 0 is such that a(n-1)^2+4*a(n-2)*a(n) is a minimal square, with a(1)=1, a(2)=1.
%C A105734 The sequence depends on seed terms a(1) and a(2); if a(1)=1, a(3)=a(2)+1. All(?) sequences end with cycle={1,2,3,2,1} (or {2,4,6,4,2}, which essentially the same cycle) of length=5.
%K A105734 dead
%O A105734 1,3