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A014397 Number of multigraphs with 7 nodes and n edges. 2
1, 1, 3, 8, 22, 60, 173, 471, 1303, 3510, 9234, 23574, 58464, 140340, 326792, 738090, 1619321, 3455129, 7180856, 14555856, 28819926, 55808840, 105834657, 196779279, 359124362, 643976482, 1135731758, 1971734302, 3372477533 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

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).

CROSSREFS

Cf. A001399, A003082, A014395, A014396, A014398.

Sequence in context: A024581 A028859 A155020 * A048503 A200752 A048579

Adjacent sequences:  A014394 A014395 A014396 * A014398 A014399 A014400

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

More terms and better description from Vladeta Jovovic (vladeta(AT)eunet.rs), Dec 29 1999

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Last modified February 16 10:53 EST 2012. Contains 205904 sequences.