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A077839
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Expansion of (1-x)/(1-3*x-2*x^2-2*x^3).
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0
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1, 2, 8, 30, 110, 406, 1498, 5526, 20386, 75206, 277442, 1023510, 3775826, 13929382, 51386818, 189570870, 699345010, 2579950406, 9517682978, 35111639766, 129530186066, 477849203686, 1762831262722, 6503252567670, 23991118635826, 88505523568262
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(0)=1, a(1)=2, a(3)=8, a(n)=3a(n-1)+2a(n-2)+2a(n-3) [From Harvey P. Dale, Apr 29 2011]
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MATHEMATICA
| CoefficientList[Series[(1-x)/(1-3x-2x^2-2x^3), {x, 0, 40}], x] (* or *) LinearRecurrence[{3, 2, 2}, {1, 2, 8}, 41] (* From Harvey P. Dale, Apr 29 2011 *)
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CROSSREFS
| Sequence in context: A168605 A127865 A199923 * A052530 A162551 A073663
Adjacent sequences: A077836 A077837 A077838 * A077840 A077841 A077842
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Nov 17 2002
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