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Search: id:A005816
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| A005816 |
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Number of 4-valent labeled graphs with n nodes.
(Formerly M3006)
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+0
2
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| 1, 1, 3, 15, 138, 2021, 43581, 1295493, 50752145, 2533755933, 157055247261, 11836611005031, 1066129321651668, 113117849882149725, 13965580274228976213, 1985189312618723797371
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Goulden, I. P.; Jackson, D. M.; Reilly, J. W.; The Hammond series of a symmetric function and its application to $P$-recursiveness. SIAM J. Algebraic Discrete Methods 4 (1983), no. 2, 179-193.
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CROSSREFS
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Cf. A005815.
Sequence in context: A113723 A113379 A163949 this_sequence A086228 A162078 A136519
Adjacent sequences: A005813 A005814 A005815 this_sequence A005817 A005818 A005819
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KEYWORD
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nonn
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AUTHOR
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Simon Plouffe (simon.plouffe(AT)gmail.com)
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