A015154 - OEIS

%I #8 Oct 23 2012 17:42:52

%S 1,2,0,16,32,1344,-5120,968192,13138944,6377617408,-245871738880,

%T 376093809229824,44307874417573888,199959909725932814336,

%U -70241187753472205783040,956261367126518476707463168

%N Sum of (Gaussian) q-binomial coefficients for q=-3.

%H Vincenzo Librandi, <a href="/A015154/b015154.txt">Table of n, a(n) for n = 0..90</a>

%t Total/@Table[QBinomial[n, m, -3], {n, 0, 20}, {m, 0, n}] (* _Vincenzo Librandi_, Oct 23 2012 *)

%K sign

%O 0,2

%A _Olivier Gérard_