|
Search: id:A053421
|
|
|
| A053421 |
|
Number of 5-multigraphs on n nodes. |
|
+0
3
|
|
| 1, 6, 56, 2451, 533358, 661452084, 4364646955812, 152397092027960154, 28427450083725134688228, 28645398830642924774967347088, 157458251108667629202718200130101672
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
REFERENCES
|
F. Harary and E. M. Palmer, Graphical Enumeration, Academic Press, NY, 1973.
|
|
LINKS
|
Harald Fripertinger, The cycle type of the induced action on 2-subsets
Vladeta Jovovic, Formulae for the number T(n,k) of n-multigraphs on k nodes
|
|
CROSSREFS
|
Cf. A000088, A004102, A053400. A row of A063841.
Sequence in context: A052317 A122743 A137032 this_sequence A083696 A001593 A124546
Adjacent sequences: A053418 A053419 A053420 this_sequence A053422 A053423 A053424
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Vladeta Jovovic (vladeta(AT)eunet.rs), Jan 11 2000
|
|
|
Search completed in 0.002 seconds
|
