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Search: id:A106803
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| A106803 |
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Expansion of x(1-x)/(x^3-2x-x^2+1). |
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+0
2
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| 0, 1, 1, 3, 6, 14, 31, 70, 157, 353, 793, 1782, 4004, 8997, 20216, 45425, 102069, 229347, 515338, 1157954, 2601899, 5846414, 13136773, 29518061, 66326481, 149034250, 334876920, 752461609, 1690765888, 3799116465, 8536537209
(list; graph; listen)
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OFFSET
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0,4
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COMMENT
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A Bombieri dual sequence.
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FORMULA
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a(n)=A077998(n-1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 07 2008
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MATHEMATICA
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M = {{0, 0, 1}, {1, 2, 0}, {1, 1, 0}}; Det[M - x*IdentityMatrix[3]] v[0] = {0, 1, 1} v[n] = M.v[n - 1] a = Table[v[n][[1]], {n, 0, 50}]
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CROSSREFS
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Sequence in context: A077926 A091601 A063119 this_sequence A006356 A077998 A090165
Adjacent sequences: A106800 A106801 A106802 this_sequence A106804 A106805 A106806
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KEYWORD
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nonn
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 17 2005
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EXTENSIONS
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Edited by N. J. A. Sloane (njas(AT)research.att.com), Aug 08 2008
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