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Search: id:A005967
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| A005967 |
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Number of isomorphism classes of connected 3-regular multigraphs of order 2n, loops allowed.
(Formerly M1512)
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+0
8
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| 2, 5, 17, 71, 388, 2592, 21096, 204638, 2317172, 30024276, 437469859
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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A. T. Balaban, Enumeration of Cyclic Graphs, pp. 63-105 of A. T. Balaban, ed., Chemical Applications of Graph Theory, Ac. Press, 1976; see p. 92.
Brendan McKay, software at http://cs.anu.edu.au/~bdm/nauty/
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
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Cf. A129427, A000421, A085549, A129430, A129432, A129434, A129436
Sequence in context: A005966 A101900 A082282 this_sequence A104859 A108289 A007779
Adjacent sequences: A005964 A005965 A005966 this_sequence A005968 A005969 A005970
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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Checked by Brendan McKay (bdm(at)cs.anu.edu.au), Apr 15 2007
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