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%I #4 Mar 30 2012 16:48:46

%S 1,1,2,3,5,8,15,26,47,86,158,293,548,1024,1928,3643,6899,13108,24970,

%T 47663,91181,174768,335546,645278,1242767,2396746,4628198,8947868,

%U 17318417,33554432,65075294,126322568,245426708

%N A000016 / 2.

%Y A063776(n) / 4, n>2.

%K nonn

%O 3,3

%A _N. J. A. Sloane_, Apr 10 2000