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Search: id:A007175
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| A007175 |
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Number of simplicial 4-clusters with n cells.
(Formerly M2762)
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+0
1
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| 1, 1, 1, 3, 8, 40, 211, 1406, 9754, 71591, 537699, 4131943, 32271490, 255690412, 2050376883, 16616721067, 135920429975, 1120999363012, 9313779465810
(list; graph; listen)
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OFFSET
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1,4
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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).
F. Hering et al., The enumeration of stack polytopes and simplicial clusters, Discrete Math., 40 (1982), 203-217.
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CROSSREFS
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Sequence in context: A072687 A110561 A107991 this_sequence A152394 A128322 A038048
Adjacent sequences: A007172 A007173 A007174 this_sequence A007176 A007177 A007178
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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).
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