login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A014397 Number of multigraphs with 7 nodes and n edges. 4
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; 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..28.

CROSSREFS

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

Sequence in context: A318822 A318863 A318821 * A048503 A318862 A318820

Adjacent sequences:  A014394 A014395 A014396 * A014398 A014399 A014400

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

EXTENSIONS

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

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 21 09:11 EST 2018. Contains 317431 sequences. (Running on oeis4.)