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A hierarchical sequence (W'2{2} - see A059126).
0

%I #10 Sep 13 2022 20:41:57

%S 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 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 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 A hierarchical sequence (W'2{2} - see A059126).

%H J. Wallgren, <a href="/A059126/a059126.txt">Hierarchical sequences</a>

%F 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 Cf. A006519, A059126.

%K easy,nonn

%O 0,2

%A _Jonas Wallgren_, Feb 01 2001