A077833 Expansion of 1/(1-2*x-3*x^2-2*x^3).
1, 2, 7, 22, 69, 218, 687, 2166, 6829, 21530, 67879, 214006, 674709, 2127194, 6706527, 21144054, 66662077, 210169370, 662613079, 2089058422, 6586294821, 20764991066, 65466983439, 206401529718, 650733991885, 2051606539802, 6468218114695, 20392723832566
Offset: 0
Links
- Index entries for linear recurrences with constant coefficients, signature (2,3,2).
Crossrefs
Programs
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Mathematica
CoefficientList[Series[1/(1-2x-3x^2-2x^3),{x,0,30}],x] (* or *) LinearRecurrence[{2,3,2},{1,2,7},30] (* Harvey P. Dale, Sep 07 2017 *) -
PARI
Vec(1/(1-2*x-3*x^2-2*x^3)+O(x^99)) \\ Charles R Greathouse IV, Sep 27 2012