A156786 as a triangular array
| | | | | | | | | | 2 |
| | | | | | | | | | -1 | | -1 |
| | | | | | | | | 1 | | 4 | | 1 |
| | | | | | | | -1 | | -12 | | -12 | | -1 |
| | | | | | | 1 | | 36 | | 72 | | 36 | | 1 |
| | | | | | -1 | | -140 | | -360 | | -360 | | -140 | | -1 |
| | | | | 1 | | 750 | | 2100 | | 2400 | | 2100 | | 750 | | 1 |
| | | | -1 | | -5082 | | -15750 | | -16800 | | -16800 | | -15750 | | -5082 | | -1 |
| | | 1 | | 40376 | | 142296 | | 152880 | | 117600 | | 152880 | | 142296 | | 40376 | | 1 |
| | -1 | | -362952 | | -1453536 |
|
A156786 as a square array
| 2 | -1 | 1 | -1 | 1 | -1 | 1 | -1 | 1 | -1
| | -1 | 4 | -12 | 36 | -140 | 750 | -5082 | 40376 | -362952
| | 1 | -12 | 72 | -360 | 2100 | -15750 | 142296 | -1453536
| | -1 | 36 | -360 | 2400 | -16800 | 152880
| | 1 | -140 | 2100 | -16800 | 117600
| | -1 | 750 | -15750 | 152880
| | 1 | -5082 | 142296
| | -1 | 40376
| | 1
|
A156786 as an upper right triangle
| 2 | -1 | 1 | -1 | 1 | -1 | 1 | -1 | 1 | -1
| | -1 | 4 | -12 | 36 | -140 | 750 | -5082 | 40376 | -362952
| | | 1 | -12 | 72 | -360 | 2100 | -15750 | 142296 | -1453536
| | | | -1 | 36 | -360 | 2400 | -16800 | 152880
| | | | | 1 | -140 | 2100 | -16800 | 117600
| | | | | | -1 | 750 | -15750 | 152880
| | | | | | | 1 | -5082 | 142296
| | | | | | | | -1 | 40376
| | | | | | | | | 1
| | | | | | | | |
|
|
