A172250 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 0 | | 1 |
| | | | | | | | | | | | 0 | | 1 | | 0 |
| | | | | | | | | | | 0 | | 0 | | 2 | | -1 |
| | | | | | | | | | 0 | | 0 | | 1 | | 1 | | -1 |
| | | | | | | | | 0 | | 0 | | 0 | | 3 | | -2 | | 0 |
| | | | | | | | 0 | | 0 | | 0 | | 1 | | 3 | | -4 | | 1 |
| | | | | | | 0 | | 0 | | 0 | | 0 | | 4 | | -2 | | -2 | | 1 |
| | | | | | 0 | | 0 | | 0 | | 0 | | 1 | | 6 | | -9 | | 3 | | 0 |
| | | | | 0 | | 0 | | 0 | | 0 | | 0 | | 5 | | 0 | | -9 | | 6 | | -1 |
| | | | 0 | | 0 | | 0 | | 0 | | 0 | | 1 | | 10 | | -15 | | 3 | | 3 | | -1 |
| | | 0 | | 0 | | 0 | | 0 | | 0 | | 0 | | 6 | | 5 | | -24 | | 18 | | -4 | | 0 |
| | 0 | | 0 | | 0 | | 0 | | 0 | | 0 | | 1 | | 15 | | -20 | | -6 | | 18 | | -8 | | 1 |
|
A172250 as a square array
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | -1 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0
| | -1 | -2 | 3 | 4 | 1 | 0 | 0 | 0 | 0
| | 0 | -4 | -2 | 6 | 5 | 1 | 0 | 0
| | 1 | -2 | -9 | 0 | 10 | 6 | 1
| | 1 | 3 | -9 | -15 | 5 | 15
| | 0 | 6 | 3 | -24 | -20
| | -1 | 3 | 18 | -6
| | -1 | -4 | 18
| | 0 | -8
| | 1
|
A172250 as an upper right triangle
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | | | -1 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0
| | | | | -1 | -2 | 3 | 4 | 1 | 0 | 0 | 0 | 0
| | | | | | 0 | -4 | -2 | 6 | 5 | 1 | 0 | 0
| | | | | | | 1 | -2 | -9 | 0 | 10 | 6 | 1
| | | | | | | | 1 | 3 | -9 | -15 | 5 | 15
| | | | | | | | | 0 | 6 | 3 | -24 | -20
| | | | | | | | | | -1 | 3 | 18 | -6
| | | | | | | | | | | -1 | -4 | 18
| | | | | | | | | | | | 0 | -8
| | | | | | | | | | | | | 1
|
|
