A120257 formatted as a triangular array:
| | | | | | | | 1 | | | | | | | | |
| | | | | | | 2 | | -1 | | | | | | | |
| | | | | | 3 | | -6 | | -1 | | | | | | |
| | | | | 4 | | -20 | | -20 | | 1 | | | | | |
| | | | 5 | | -50 | | -175 | | 70 | | 1 | | | | |
| | | 6 | | -105 | | -980 | | 1764 | | 252 | | -1 | | | |
| | 7 | | -196 | | -4116 | | 24696 | | 19404 | | -924 | | -1 | | |
| 8 | | -336 | | -14112 | | 232848 | | 731808 | | -226512 | | -3432 | | 1 | |
| 9 | | -540 | | -41580 | | 1646568 | | 16818516 | | -24293412 | | -2760615 | | 12870 | | 1 |
A120257 formatted as a square array:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| -1 | -6 | -20 | -50 | -105 | -196 | -336 | -540 | |
| -1 | -20 | -175 | -980 | -4116 | -14112 | -41580 | | |
| 1 | 70 | 1764 | 24696 | 232848 | 1646568 | | | |
| 1 | 252 | 19404 | 731808 | 16818516 | | | | |
| -1 | -924 | -226512 | -24293412 | | | | | |
| -1 | -3432 | -2760615 | | | | | | |
| 1 | 12870 | | | | | | | |
| 1 | | | | | | | | |
A120257 formatted as an upper right triangle:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| -1 | -6 | -20 | -50 | -105 | -196 | -336 | -540 |
| | -1 | -20 | -175 | -980 | -4116 | -14112 | -41580 |
| | | 1 | 70 | 1764 | 24696 | 232848 | 1646568 |
| | | | 1 | 252 | 19404 | 731808 | 16818516 |
| | | | | -1 | -924 | -226512 | -24293412 |
| | | | | | -1 | -3432 | -2760615 |
| | | | | | | 1 | 12870 |
| | | | | | | | 1 |
|
