|
Search: id:A126220
|
|
|
| A126220 |
|
Number of binary trees (i.e. rooted trees where each vertex has either 0,1, or 2 children; and, when only one child is present, it is either a right child or a left child ) with n edges and no adjacent vertices of outdegree 2. |
|
+0
2
|
|
| 1, 2, 5, 14, 40, 116, 344, 1040, 3188, 9880, 30912, 97520, 309856, 990656, 3184672, 10287808, 33379072, 108724864, 355405568, 1165521408, 3833497408, 12642775424, 41799227392, 138512751360, 459973953024, 1530498526208
(list; graph; listen)
|
|
|
|
|
Search completed in 0.002 seconds
|
