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Search: id:A002856
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| A002856 |
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Number of polyhedra with n nodes and n faces.
(Formerly M1864 N0739)
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+0
5
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| 1, 1, 2, 8, 42, 296, 2635, 25626, 268394, 2937495, 33310550, 388431688, 4637550072, 56493493990, 700335433295
(list; graph; listen)
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OFFSET
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4,3
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
P. J. Federico, Enumeration of polyhedra: the number of 9-hedra, J. Combin. Theory, 7 (1969), 155-161.
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LINKS
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G. P. Michon, Counting Polyhedra
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CROSSREFS
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Sequence in context: A002874 A078592 A052646 this_sequence A093461 A153524 A153552
Adjacent sequences: A002853 A002854 A002855 this_sequence A002857 A002858 A002859
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KEYWORD
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nonn,hard,nice
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Gerard P. Michon (g.michon(AT)att.net), Mar 29 2002
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