|
Search: id:A020563
|
|
|
| A020563 |
|
Number of cyclic multigraphs on n labeled edges (with loops). |
|
+0
1
|
|
| 1, 2, 9, 68, 750, 11178, 213895, 5068102, 144746329, 4880572564, 191104219619, 8573780527428, 435844228476008, 24868815362420244, 1579939008182007447, 110981916769308996238, 8567134375799509782211
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
REFERENCES
|
G. Labelle, Counting enriched multigraphs..., Discrete Math., 217 (2000), 237-248.
G. Paquin, D\'enombrement de multigraphes enrichis, M\'emoire, Math. Dept., Univ. Qu\'ebec \`a Montr\'eal, 2004.
|
|
CROSSREFS
|
Sequence in context: A038037 A138212 A120980 this_sequence A006849 A121417 A136738
Adjacent sequences: A020560 A020561 A020562 this_sequence A020564 A020565 A020566
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Gilbert Labelle (gilbert(AT)lacim.uqam.ca), Simon Plouffe (plouffe(AT)math.uqam.ca)
|
|
|
Search completed in 0.002 seconds
|
