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 A059146 #10 Sep 13 2022 20:41:57
%S A059146 1,2,1,4,8,4,1,2,1,16,32,16,1,2,1,4,8,4,1,2,1,64,128,64,1,2,1,4,8,4,1,
%T A059146 2,1,16,32,16,1,2,1,4,8,4,1,2,1,256,512,256,1,2,1,4,8,4,1,2,1,16,32,
%U A059146 16,1,2,1,4,8,4,1,2,1,64,128,64,1,2,1,4,8,4,1,2,1,16,32,16,1,2,1,4,8,4,1
%N A059146 A hierarchical sequence (W'2{2} - see A059126).
%H A059146 J. Wallgren, <a href="/A059126/a059126.txt">Hierarchical sequences</a>
%F A059146 a(3*n) = a(3*n+2) = A006519(n)^2, a(3*n+1) = 2*a(3*n). - _Sean A. Irvine_, Sep 13 2022
%Y A059146 Cf. A006519, A059126.
%K A059146 easy,nonn
%O A059146 0,2
%A A059146 _Jonas Wallgren_, Feb 01 2001