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A002856 Number of polyhedra with n nodes and n faces.
(Formerly M1864 N0739)
6
1, 1, 2, 8, 42, 296, 2635, 25626, 268394, 2937495, 33310550, 388431688, 4637550072, 56493493990, 700335433295 (list; graph; refs; listen; history; text; internal format)
OFFSET
4,3
REFERENCES
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
P. J. Federico, Enumeration of polyhedra: the number of 9-hedra, J. Combin. Theory, 7 (1969), 155-161.
Kyu-Hwan Lee, Se-jin Oh, Catalan triangle numbers and binomial coefficients, arXiv:1601.06685 [math.CO], 2016.
G. P. Michon, Counting Polyhedra
CROSSREFS
One of the main diagonals of A212438.
Sequence in context: A052646 A352646 A320343 * A093461 A191994 A153524
KEYWORD
nonn,hard,more,nice
AUTHOR
EXTENSIONS
More terms from Gerard P. Michon, Mar 29 2002
STATUS
approved

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Last modified June 14 07:16 EDT 2024. Contains 373393 sequences. (Running on oeis4.)