A059156 - OEIS

%I #12 Sep 13 2022 20:41:47

%S 4,16,4,64,256,64,4,16,4,1024,4096,1024,4,16,4,64,256,64,4,16,4,16384,

%T 65536,16384,4,16,4,64,256,64,4,16,4,1024,4096,1024,4,16,4,64,256,64,

%U 4,16,4,262144,1048576,262144,4,16,4,64,256,64,4,16,4,1024,4096,1024,4

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

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

%F a(n) = A059148(3*n) + A059148(3*n+1) + A059148(3*n+2). - _Sean A. Irvine_, Sep 13 2022

%Y Cf. A059126, A059148.

%K easy,nonn

%O 0,1

%A _Jonas Wallgren_, Feb 02 2001