|
| |
|
|
A137975
|
|
Row sums of A139621, number of connected directed multigraphs with loops and no vertex of degree 0, with n arcs.
|
|
1
| |
|
|
1, 2, 8, 32, 167, 928, 5924, 40211, 293370, 2255406, 18201706, 153141115, 1339341815, 12124729941, 113363309476, 1092332531380
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
