%I #6 Mar 28 2014 23:43:18
%S 1,2,4,9,18,37,77,150,333,601,1202,2405,4941,9622,21325,38489,76978,
%T 153957
%N a(n) = decimal equivalent of A215254(n).
%Y Cf. A215244-A215246, A215254.
%K nonn,base
%O 1,2
%A _N. J. A. Sloane_, Aug 14 2012