A077944 - OEIS

%I #7 Jun 09 2018 07:58:45

%S 1,2,2,-1,-8,-16,-15,10,66,127,112,-96,-543,-1006,-830,895,4456,7952,

%T 6097,-8166,-36478,-62721,-44320,73280,297921,493602,318082,-648961,

%U -2427688,-3875536,-2246735,5685290,19739586,30355327,15546192,-49357856,-160163423,-237157326,-104629950

%N Expansion of 1/(1-2*x+2*x^2+x^3).

%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (2,-2,-1).

%o (PARI) Vec(1/(1-2*x+2*x^2+x^3)+O(x^99)) \\ _Charles R Greathouse IV_, Sep 26 2012

%K sign,easy

%O 0,2

%A _N. J. A. Sloane_, Nov 17 2002