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A hierarchical sequence (W'3{2,2}*c - see A059126).
0

%I #10 Sep 13 2022 20:41:34

%S 4,8,4,8,16,8,4,8,4,16,32,16,4,8,4,8,16,8,4,8,4,32,64,32,4,8,4,8,16,8,

%T 4,8,4,16,32,16,4,8,4,8,16,8,4,8,4,64,128,64,4,8,4,8,16,8,4,8,4,16,32,

%U 16,4,8,4,8,16,8,4,8,4,32,64,32,4,8,4,8,16,8,4,8,4,16,32,16,4,8,4,8,16

%N A hierarchical sequence (W'3{2,2}*c - see A059126).

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

%F Conjecture: a(n) = 2^(1+A059129(n)). - _R. J. Mathar_, Apr 04 2019

%F a(n) = A059151(3*n) + A059151(3*n+1) + A059151(3*n+2). - _Sean A. Irvine_, Sep 13 2022

%K easy,nonn

%O 0,1

%A _Jonas Wallgren_, Feb 02 2001