A252840 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 0 | | -3 |
| | | | | | | | 1 | | -1 | | -3 | | 5 |
| | | | | | | 1 | | -2 | | -2 | | 8 | | -7 |
| | | | | | 1 | | -3 | | 0 | | 10 | | -15 | | 9 |
| | | | | 1 | | -4 | | 3 | | 10 | | -25 | | 24 | | -11 |
| | | | 1 | | -5 | | 7 | | 7 | | -35 | | 49 | | -35 | | 13 |
| | | 1 | | -6 | | 12 | | 0 | | -42 | | 84 | | -84 | | 48 | | -15 |
| | 1 | | -7 | | 18 | | -12 | | -42 | | 126 | | -168 | | 132 | | -63 | | 17 |
|
A252840 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 0 | -1 | -2 | -3 | -4 | -5 | -6 | -7
| | -3 | -3 | -2 | 0 | 3 | 7 | 12 | 18
| | 5 | 8 | 10 | 10 | 7 | 0 | -12
| | -7 | -15 | -25 | -35 | -42 | -42
| | 9 | 24 | 49 | 84 | 126
| | -11 | -35 | -84 | -168
| | 13 | 48 | 132
| | -15 | -63
| | 17
|
A252840 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 0 | -1 | -2 | -3 | -4 | -5 | -6 | -7
| | | -3 | -3 | -2 | 0 | 3 | 7 | 12 | 18
| | | | 5 | 8 | 10 | 10 | 7 | 0 | -12
| | | | | -7 | -15 | -25 | -35 | -42 | -42
| | | | | | 9 | 24 | 49 | 84 | 126
| | | | | | | -11 | -35 | -84 | -168
| | | | | | | | 13 | 48 | 132
| | | | | | | | | -15 | -63
| | | | | | | | | | 17
|
|
