A006795 A subclass of 2n-node trivalent planar graphs without triangles. (Formerly M1936)

1, 2, 9, 43, 212, 1115, 6156, 34693, 199076

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