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A006791
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Number of cyclically-5-connected planar trivalent graphs with 2n nodes.
(Formerly M2373)
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1
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1, 0, 1, 1, 3, 4, 12, 23, 71, 187, 627, 1970, 6833, 23384, 82625, 292164
(list; graph; refs; listen; history; internal format)
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OFFSET
| 10,5
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REFERENCES
| D. A. Holton and B. D. McKay, The smallest non-hamiltonian 3-connected cubic planar graphs have 38 vertices, J. Combinat. Theory, B 45 (1988), 305-319.
Brendan McKay, personal communication.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A000206 A075223 A071332 * A111358 A111357 A081621
Adjacent sequences: A006788 A006789 A006790 * A006792 A006793 A006794
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KEYWORD
| nonn,changed
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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