%I #16 Sep 21 2020 07:06:23
%S -2,0,12,20,-12,-60,52,420,468,-700,-1548,3300,13588,8580,-29388,
%T -30940,152148,406980,60532,-1043100,-236652,6032900,11173812,
%U -4569180,-32487212,19343940,216401652,273243620,-323927532,-880031100,1489420852,7157028900
%N a(n) = A112260(n+1) - A112260(n).
%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3,-6,8).
%F a(n) = 3*a(n-1)-6*a(n-2)+8*a(n-3); G.f.: -2*(3*x-1) / ((2*x-1)*(4*x^2-x+1)). - _Colin Barker_, Nov 02 2014
%e a(4) = A112260(5) - A112260(4) = 31-11 = 20.
%Y Cf. A112259, A112260.
%K sign
%O 1,1
%A _Russell Walsmith_, Aug 30 2005
%E Name corrected and more terms from _Colin Barker_, Nov 02 2014