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A014398 Number of multigraphs with 8 nodes and n edges. 6
1, 1, 3, 8, 23, 64, 197, 588, 1806, 5509, 16677, 49505, 143761, 406091, 1114890, 2970964, 7685972, 19311709, 47170674, 112123118, 259662333, 586583731, 1294143065, 2791716176, 5895027869, 12198014683, 24758285639, 49339306519 (list; graph; refs; listen; history; text; 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).

LINKS

Table of n, a(n) for n=0..27.

CROSSREFS

Cf. A001399, A003082, A014395- A014397.

Sequence in context: A017929 A017930 A305561 * A176880 A078054 A018043

Adjacent sequences:  A014395 A014396 A014397 * A014399 A014400 A014401

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

More terms and better description from Vladeta Jovovic, Dec 29 1999

STATUS

approved

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Last modified November 17 18:48 EST 2018. Contains 317276 sequences. (Running on oeis4.)