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

%I #8 May 21 2018 15:10:19

%S 1,3,11,41,151,557,2055,7581,27967,103173,380615,1404125,5179951,

%T 19109333,70496151,260067021,959412031,3539362437,13057045415,

%U 48168685181,177698871247,655548074933,2418379337655,8921631905325,32912750541151,121418274109413

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

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

%o (PARI) Vec(1/(1-3*x-2*x^2-2*x^3)+O(x^99)) \\ _Charles R Greathouse IV_, Sep 27 2012

%Y Partial sums of S(n, x), for x=1...16, A021823, A000217, A027941, A061278, A089817, A053142, A092521, A076765, A092420, A097784, A097826-A097828, A076139, A097829, A097830.

%K nonn,easy

%O 0,2

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