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Search: id:A071100
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| A071100 |
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Expansion of (5+3*x+x^2-x^3)/(1-2*x-2*x^2-2*x^3+x^4). |
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3
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| 5, 13, 37, 109, 313, 905, 2617, 7561, 21853, 63157, 182525, 527509, 1524529, 4405969, 12733489, 36800465, 106355317, 307372573, 888323221, 2567301757, 7419639785, 21443156953, 61971873769, 179102039257, 517614500173, 1495933669445, 4323328543981
(list; graph; listen)
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OFFSET
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0,1
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REFERENCES
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J. Propp, Enumeration of matchings: problems and progress, pp. 255-291 in L. J. Billera et al., eds, New Perspectives in Algebraic Combinatorics, Cambridge, 1999 (see Problem 12).
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LINKS
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J. Propp, Updated article
J. Propp, Enumeration of matchings: problems and progress, in L. J. Billera et al. (eds.), New Perspectives in Algebraic Combinatorics
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CROSSREFS
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Sequence in context: A058507 A111057 A083413 this_sequence A125734 A146925 A146452
Adjacent sequences: A071097 A071098 A071099 this_sequence A071101 A071102 A071103
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), May 28 2002
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