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A124159 Maximal order of a complete graph that is the union of two graphs which can both be embedded on a sphere with n handles. +0
2
8, 13, 14, 15 (list; graph; listen)
OFFSET

1,1

COMMENT

a(3) is known to be 15 or 16. I have put 15 here because otherwise the sequence would be too short to include in the OEIS. But the true value is (or was in 1997 at least) not known.

REFERENCES

L. W. Beineke, Biplanar graphs: a survey, Computers Math. Applic., 34 (1997), 1-8.

CROSSREFS

Cf. A124156-A124158.

Sequence in context: A067923 A076028 A070476 this_sequence A128662 A133192 A063684

Adjacent sequences: A124156 A124157 A124158 this_sequence A124160 A124161 A124162

KEYWORD

nonn

AUTHOR

njas, Dec 02 2006

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Last modified December 3 16:57 EST 2008. Contains 151279 sequences.


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