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A007333
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Biplanar crossing number of complete graph on n nodes.
(Formerly M3306)
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1
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0, 0, 0, 0, 0, 0, 0, 0, 4, 7, 12, 18, 37, 53, 75, 100, 152
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,9
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REFERENCES
| A. Owens, On the biplanar crossing number, IEEE Trans. Circuit Theory, 18 (1971), 277-280.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Cf. A000241.
Sequence in context: A074148 A178907 A132297 * A097536 A022809 A188554
Adjacent sequences: A007330 A007331 A007332 * A007334 A007335 A007336
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KEYWORD
| nonn,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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