A111672 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 2 | | 1 |
| | | | | | | 1 | | 3 | | 5 | | 1 |
| | | | | | 1 | | 4 | | 12 | | 15 | | 1 |
| | | | | 1 | | 5 | | 22 | | 60 | | 52 | | 1 |
| | | | 1 | | 6 | | 35 | | 154 | | 358 | | 203 | | 1 |
| | | 1 | | 7 | | 51 | | 315 | | 1304 | | 2471 | | 877 | | 1 |
| | 1 | | 8 | | 70 | | 561 | | 3455 | | 12915 | | 19302 | | 4140 | | 1 |
|
A111672 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8
| | 1 | 5 | 12 | 22 | 35 | 51 | 70
| | 1 | 15 | 60 | 154 | 315 | 561
| | 1 | 52 | 358 | 1304 | 3455
| | 1 | 203 | 2471 | 12915
| | 1 | 877 | 19302
| | 1 | 4140
| | 1
|
A111672 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8
| | | 1 | 5 | 12 | 22 | 35 | 51 | 70
| | | | 1 | 15 | 60 | 154 | 315 | 561
| | | | | 1 | 52 | 358 | 1304 | 3455
| | | | | | 1 | 203 | 2471 | 12915
| | | | | | | 1 | 877 | 19302
| | | | | | | | 1 | 4140
| | | | | | | | | 1
|
|
