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A014396
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Number of multigraphs with 6 nodes and n edges.
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3
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1, 1, 3, 8, 21, 52, 132, 313, 741, 1684, 3711, 7895, 16310, 32604, 63363, 119745, 220546, 396428, 696750, 1198812, 2022503, 3349574, 5452496, 8732932, 13776366, 21423968, 32872642, 49804323, 74560913, 110369469, 161639227
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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REFERENCES
| CRC Handbook of Combinatorial Designs, 1996, p. 650.
F. Harary and E. M. Palmer, Graphical Enumeration, Academic Press, NY, 1973, p. 88, (4.1.18).
J. L. Gross and J. Yellen, eds., Handbook of Graph Theory, CRC Press, 2004; p. 517.
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CROSSREFS
| Cf. A001399, A003082, A014395, A014397, A014398.
Sequence in context: A096770 A007835 A152086 * A170881 A039671 A166287
Adjacent sequences: A014393 A014394 A014395 * A014397 A014398 A014399
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms and better description from Vladeta Jovovic (vladeta(AT)eunet.rs), Dec 29 1999
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