|
| |
|
|
A030981
|
|
Noncrossing bushes with n nodes; i.e. rooted noncrossing trees with n nodes and no nonroot nodes of degree 1.
|
|
3
| |
|
|
1, 1, 4, 11, 41, 146, 564, 2199, 8835, 35989, 148912, 623008, 2633148, 11222160, 48181056, 208180847, 904593623, 3950338043, 17328256180, 76316518987, 337332601513, 1495992837550, 6654367576732, 29681131861564
(list; graph; refs; listen; history; internal format)
|
| |
| |
|
|
