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A006795 A subclass of 2n-node trivalent planar graphs without triangles.
(Formerly M1936)
0
1, 2, 9, 43, 212, 1115, 6156, 34693, 199076 (list; graph; refs; listen; history; text; internal format)
OFFSET

7,2

REFERENCES

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=7..15.

D. A. Holton and B. D. McKay, The smallest non-hamiltonian 3-connected cubic planar graphs have 38 vertices, J. Combinat. Theory B vol 45, iss. 3 (1988) 305-319.

D. A. Holton and B. D. McKay, Erratum, J. Combinat. Theory B vol 47, iss. 2 (1989) 248.

CROSSREFS

Sequence in context: A002310 A309986 A055728 * A055824 A334680 A324619

Adjacent sequences:  A006792 A006793 A006794 * A006796 A006797 A006798

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified April 14 22:47 EDT 2021. Contains 342971 sequences. (Running on oeis4.)