login
Coefficients of (-x^(2n-6)) in Chebyshev polynomial of degree 2n.
0

%I #11 Jun 13 2015 00:50:31

%S 1,32,400,3584,26880,180224,1118208,6553600,36765696,199229440,

%T 1049624576,5402263552,27262976000,135291469824,661693399040,

%U 3195455668224,15260018802688,72155450572800,338168545017856

%N Coefficients of (-x^(2n-6)) in Chebyshev polynomial of degree 2n.

%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (16,-96,256,-256).

%F a(n) = n(2n^2+3n-2)/12 * 4^n. - _Ralf Stephan_, May 08 2004

%F G.f. x*( 1+16*x-16*x^2 ) / (4*x-1)^4 . - _R. J. Mathar_, May 20 2013

%K easy,nonn

%O 1,2

%A _Benoit Cloitre_, Mar 22 2002