A221125 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 3 | | 1 |
| | | | | | | | 8 | | 21 | | 1 |
| | | | | | | 21 | | 200 | | 144 | | 1 |
| | | | | | 55 | | 1950 | | 4872 | | 987 | | 1 |
| | | | | 144 | | 19005 | | 179300 | | 118472 | | 6765 | | 1 |
| | | | 377 | | 185164 | | 6405243 | | 16436223 | | 2880520 | | 46368 | | 1 |
| | | 987 | | 1803949 | | 229006550 | | 2152770692 | | 1506094707 | | 70036168 | | 317811 | | 1 |
| | 2584 | | 17574675 |
|
A221125 as a square array
| 1 | 3 | 8 | 21 | 55 | 144 | 377 | 987 | 2584
| | 1 | 21 | 200 | 1950 | 19005 | 185164 | 1803949 | 17574675
| | 1 | 144 | 4872 | 179300 | 6405243 | 229006550
| | 1 | 987 | 118472 | 16436223 | 2152770692
| | 1 | 6765 | 2880520 | 1506094707
| | 1 | 46368 | 70036168
| | 1 | 317811
| | 1
|
A221125 as an upper right triangle
| 1 | 3 | 8 | 21 | 55 | 144 | 377 | 987 | 2584
| | 1 | 21 | 200 | 1950 | 19005 | 185164 | 1803949 | 17574675
| | | 1 | 144 | 4872 | 179300 | 6405243 | 229006550
| | | | 1 | 987 | 118472 | 16436223 | 2152770692
| | | | | 1 | 6765 | 2880520 | 1506094707
| | | | | | 1 | 46368 | 70036168
| | | | | | | 1 | 317811
| | | | | | | | 1
| | | | | | | |
|
|
