A033924 - OEIS

%I #3 Oct 14 2012 12:58:14

%S 1,1,2,3,1,2,3,4,2,3,4,5,3,4,5,6,2,3,4,5,3,4,5,6,4,5,6,7,5,6,7,8,4,5,

%T 6,7,5,6,7,8,6,7,8,9,7,8,9,10,6,7,8,9,7,8,9,10,8,9,10,11,9,10,11,12,3,

%U 4,5,6,4,5,6,7,5,6,7,8,6,7,8,9,5,6,7,8,6,7,8,9,7,8,9,10,8,9,10,11,7,8,9

%N Base 4 digital convolution sequence.

%F For example, 53 = 311 in base 4, so a(53) = 3a(2)+1a(1)+1a(0).

%K nonn,base

%O 1,3

%A _David W. Wilson_