%I #7 Oct 19 2019 16:08:15
%S 1,2,2,3,3,3,6,6,7,7,8,11,13,9,6,14,14,15,16,17,18,18,17,19,20,18,20,
%T 19,19,24,25,28,25,29,29,30,27,31,31,32,32,28,36,30,41,33,30,34,44,48,
%U 42,35,37,45,43,52,51,56,47,50,46,47,41,49,60,58,55,49,48,53,53,68,54,58,60,62
%N Number of terms in Zeckendorf representation of 4^n.
%H Amiram Eldar, <a href="/A025496/b025496.txt">Table of n, a(n) for n = 0..1000</a>
%Y Cf. A007895.
%K nonn
%O 0,2
%A _Clark Kimberling_