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A007333 Biplanar crossing number of complete graph on n nodes.
(Formerly M3306)
2
0, 0, 0, 0, 0, 0, 0, 0, 4, 7, 12, 18, 37, 53, 75, 100, 152 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,9

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).

LINKS

Table of n, a(n) for n=1..17.

A. Owens, On the biplanar crossing number, IEEE Trans. Circuit Theory, 18 (1971), 277-280. [Annotated scanned copy]

CROSSREFS

Cf. A000241.

Sequence in context: A178907 A265431 A132297 * A097536 A293829 A022809

Adjacent sequences:  A007330 A007331 A007332 * A007334 A007335 A007336

KEYWORD

nonn,nice

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 16 06:26 EDT 2019. Contains 328050 sequences. (Running on oeis4.)