A111670 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 2 | | 1 |
| | | | | | | 1 | | 3 | | 6 | | 1 |
| | | | | | 1 | | 4 | | 15 | | 24 | | 1 |
| | | | | 1 | | 5 | | 28 | | 105 | | 116 | | 1 |
| | | | 1 | | 6 | | 45 | | 280 | | 929 | | 648 | | 1 |
| | | 1 | | 7 | | 66 | | 585 | | 3600 | | 9851 | | 4088 | | 1 |
| | 1 | | 8 | | 91 | | 1056 | | 9865 | | 56240 | | 121071 | | 28640 | | 1 |
|
A111670 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8
| | 1 | 6 | 15 | 28 | 45 | 66 | 91
| | 1 | 24 | 105 | 280 | 585 | 1056
| | 1 | 116 | 929 | 3600 | 9865
| | 1 | 648 | 9851 | 56240
| | 1 | 4088 | 121071
| | 1 | 28640
| | 1
|
A111670 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8
| | | 1 | 6 | 15 | 28 | 45 | 66 | 91
| | | | 1 | 24 | 105 | 280 | 585 | 1056
| | | | | 1 | 116 | 929 | 3600 | 9865
| | | | | | 1 | 648 | 9851 | 56240
| | | | | | | 1 | 4088 | 121071
| | | | | | | | 1 | 28640
| | | | | | | | | 1
|
|
