A054631 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 3 |
| | | | | | | | 1 | | 4 | | 11 |
| | | | | | | 1 | | 6 | | 24 | | 70 |
| | | | | | 1 | | 8 | | 51 | | 208 | | 629 |
| | | | | 1 | | 14 | | 130 | | 700 | | 2635 | | 7826 |
| | | | 1 | | 20 | | 315 | | 2344 | | 11165 | | 39996 | | 117655 |
| | | 1 | | 36 | | 834 | | 8230 | | 48915 | | 210126 | | 720916 | | 2097684 |
| | 1 | | 60 | | 2195 | | 29144 | | 217045 | | 1119796 | | 4483815 | | 14913200 | | 43046889 |
|
A054631 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 3 | 4 | 6 | 8 | 14 | 20 | 36 | 60
| | 11 | 24 | 51 | 130 | 315 | 834 | 2195
| | 70 | 208 | 700 | 2344 | 8230 | 29144
| | 629 | 2635 | 11165 | 48915 | 217045
| | 7826 | 39996 | 210126 | 1119796
| | 117655 | 720916 | 4483815
| | 2097684 | 14913200
| | 43046889
|
A054631 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 3 | 4 | 6 | 8 | 14 | 20 | 36 | 60
| | | 11 | 24 | 51 | 130 | 315 | 834 | 2195
| | | | 70 | 208 | 700 | 2344 | 8230 | 29144
| | | | | 629 | 2635 | 11165 | 48915 | 217045
| | | | | | 7826 | 39996 | 210126 | 1119796
| | | | | | | 117655 | 720916 | 4483815
| | | | | | | | 2097684 | 14913200
| | | | | | | | | 43046889
|
|
