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A003122 Number of Hamiltonian rooted triangulations with n internal nodes.
(Formerly M3049)
1
1, 3, 18, 136, 1170, 10962, 109158, 1138032, 12298392, 136803060, 1558392462 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

P. N. Rathie, The enumeration of Hamiltonian polygons in rooted planar triangulations, Discrete Math., 6 (1973), 163-168.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

CROSSREFS

Sequence in context: A151383 A177406 A118970 * A039618 A183363 A127129

Adjacent sequences:  A003119 A003120 A003121 * A003123 A003124 A003125

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 16 19:48 EST 2012. Contains 205955 sequences.