A156188 as a triangular array
| | | | | | | | | 2 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 10 | | 1 |
| | | | | | | 1 | | 80 | | 80 | | 1 |
| | | | | | 1 | | 775 | | 1520 | | 775 | | 1 |
| | | | | 1 | | 10915 | | 25945 | | 25945 | | 10915 | | 1 |
| | | | 1 | | 213720 | | 542910 | | 624670 | | 542910 | | 213720 | | 1 |
| | | 1 | | 5245530 | | 14690640 | | 16408670 | | 16408670 | | 14690640 | | 5245530 | | 1 |
| | 1 | | 151534685 | | 479956020 | | 553630850 | | 464654480 |
|
A156188 as a square array
| 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 10 | 80 | 775 | 10915 | 213720 | 5245530 | 151534685
| | 1 | 80 | 1520 | 25945 | 542910 | 14690640 | 479956020
| | 1 | 775 | 25945 | 624670 | 16408670 | 553630850
| | 1 | 10915 | 542910 | 16408670 | 464654480
| | 1 | 213720 | 14690640
| | 1 | 5245530
| | 1
|
A156188 as an upper right triangle
| 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 10 | 80 | 775 | 10915 | 213720 | 5245530 | 151534685
| | | 1 | 80 | 1520 | 25945 | 542910 | 14690640 | 479956020
| | | | 1 | 775 | 25945 | 624670 | 16408670 | 553630850
| | | | | 1 | 10915 | 542910 | 16408670 | 464654480
| | | | | | 1 | 213720 | 14690640
| | | | | | | 1 | 5245530
| | | | | | | | 1
| | | | | | | |
|
|
