A128131 - OEIS

%I #10 Feb 24 2015 05:40:07

%S 1,-4,0,0,-16384,1048576,0,0,17592186044416,-18014398509481984,0,0,

%T -1237940039285380274899124224,20282409603651670423947251286016,0,0,

%U 5708990770823839524233143877797980545530986496

%N a(n) = 2^A000096(n)*A128130(n).

%F a(n) = 2^n * 2^C(n+1,2) * A128130(n);

%p A128131 := proc(n)

%p     2^(n*(n+3)/2)*A128130(n) ;

%p end proc: # _R. J. Mathar_, Feb 24 2015

%Y Cf. A036442, A127945.

%K easy,sign

%O 0,2

%A _Paul Barry_, Feb 15 2007

%E Incorrect NAME removed. - _R. J. Mathar_, Feb 24 2015