A158926 - OEIS

%I #5 Jul 03 2023 11:13:32

%S 0,0,0,-9,27,-54,99,-189,378,-765,1539,-3078,6147,-12285,24570,-49149,

%T 98307,-196614,393219,-786429,1572858,-3145725,6291459,-12582918,

%U 25165827,-50331645,100663290,-201326589,402653187,-805306374,1610612739,-3221225469,6442450938

%N First differences of A158916.

%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (-3, -3, -2).

%F a(n) = -3a(n-1)-3a(n-2)-2a(n-3), n > 3.

%F a(n) = 9*(-1)^n*A024495(n+1) .

%F G.f.: -9*x^3/((2*x+1)*(1+x+x^2)). - _R. J. Mathar_, Apr 08 2009

%K sign,easy

%O 0,4

%A _Paul Curtz_, Mar 31 2009

%E Edited and extended by _R. J. Mathar_, Apr 08 2009