%I #11 Sep 26 2019 03:08:34
%S 1,2,16,120,882,6468,47680,354224,2652688,20008864,151853312,
%T 1158365824,8873772392,68219456080,526025997824,4066475337152,
%U 31505967787522,244574907064964,1901855959279776,14811829930479600,115514550050260068,901993060739459720
%N a(n) = A026301(n)/2^n.
%F a(n) ~ 2^(3*n + 1/2) / (Pi * sqrt(n)). - _Vaclav Kotesovec_, Sep 26 2019
%Y Cf. A065409, A026301, A060042.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, following a suggestion of _Peter J Larcombe_, Jan 16 2004
%E More terms from _Vaclav Kotesovec_, Sep 26 2019