%I #3 Mar 31 2012 13:21:11
%S 2,2,4,5,9,20,39,76,127,309,509,1263,2621,5044,10025
%N a(n) = A116648(2^n).
%Y Cf. a(n) = A116648(A000079(n)). Cf. A116650.
%K nonn
%O 0,1
%A _Antti Karttunen_, Feb 21 2006
