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a(n) = A004017(n)/2.
1

%I #8 Mar 08 2020 22:49:04

%S 8,64,224,512,1008,1792,2752,4096,6056,8064,10656,14336,17584,22016,

%T 28224,32768,39312,48448,54880,64512,77056,85248,97344,114688,126008,

%U 140672,163520,176128,195120,225792,238336,262144,298368,314496

%N a(n) = A004017(n)/2.

%Y Cf. A004017.

%K nonn

%O 1,1

%A _N. J. A. Sloane_