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A107387
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Expansion of x*(1-2*x-x^2)/( (1-x)*(1+x)*(1-3*x+x^2)).
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1
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0, 1, 1, 2, 3, 7, 16, 41, 105, 274, 715, 1871, 4896, 12817, 33553, 87842, 229971, 602071, 1576240, 4126649, 10803705, 28284466, 74049691, 193864607, 507544128, 1328767777, 3478759201, 9107509826, 23843770275, 62423800999, 163427632720, 427859097161
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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COMMENTS
| The real roots of the denominator function are x= +-1, A104457 and A132338.
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (3,0,-3,1).
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FORMULA
| a(n) = 1+A001654(n-2).
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CROSSREFS
| Sequence in context: A081207 A027118 A114582 * A091487 A162092 A143884
Adjacent sequences: A107384 A107385 A107386 * A107388 A107389 A107390
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KEYWORD
| nonn
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AUTHOR
| Roger L. Bagula (rlbagulatftn(AT)yahoo.com), May 24 2005, corrected Sep 04 2008. Replaced by a regular sequence, R. J. Mathar, Aug 31 2011
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