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A002560
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Number of polygonal graphs.
(Formerly M3203 N1295)
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0
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1, 1, 4, 2, 7, 5, 15, 6, 37, 13, 36, 32, 37, 34, 73, 58, 183, 150, 262, 186, 1009, 420, 707, 703, 760, 1180, 4639
(list; graph; refs; listen; history; internal format)
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OFFSET
| 4,3
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REFERENCES
| M. A. Sainte-Lagu\"{e}, Les R\'{e}seaux (ou Graphes)}, M\'{e}morial des Sciences Math\'{e}matiques, Fasc. 18, Gauthier-Villars, Paris, 1923, p. 61. http://www.numdam.org/item?id=AFST_1923_3_15__27_0
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).
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CROSSREFS
| Sequence in context: A115302 A109857 A194075 * A124908 A143370 A016695
Adjacent sequences: A002557 A002558 A002559 * A002561 A002562 A002563
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| Reference corrected by Georg Muntingh (georg.muntingh(AT)gmail.com), Jul 07 2009
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