A207815 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | -3 | | 1 |
| | | | | | | | | 8 | | -6 | | 1 |
| | | | | | | | -21 | | 25 | | -9 | | 1 |
| | | | | | | 55 | | -90 | | 51 | | -12 | | 1 |
| | | | | | -144 | | 300 | | -234 | | 86 | | -15 | | 1 |
| | | | | 377 | | -954 | | 951 | | -480 | | 130 | | -18 | | 1 |
| | | | -987 | | 2939 | | -3573 | | 2305 | | -855 | | 183 | | -21 | | 1 |
| | | 2584 | | -8850 | | 12707 | | -10008 | | 4740 | | -1386 | | 245 | | -24 | | 1 |
| | -6765 | | 26195 | | -43398 | | 40426 | | -23373 | | 8715 |
|
A207815 as a square array
1 | -3 | 8 | -21 | 55 | -144 | 377 | -987 | 2584 | -6765
| 1 | -6 | 25 | -90 | 300 | -954 | 2939 | -8850 | 26195
| 1 | -9 | 51 | -234 | 951 | -3573 | 12707 | -43398
| 1 | -12 | 86 | -480 | 2305 | -10008 | 40426
| 1 | -15 | 130 | -855 | 4740 | -23373
| 1 | -18 | 183 | -1386 | 8715
| 1 | -21 | 245
| 1 | -24
| 1
|
A207815 as an upper right triangle
1 | -3 | 8 | -21 | 55 | -144 | 377 | -987 | 2584 | -6765
| | 1 | -6 | 25 | -90 | 300 | -954 | 2939 | -8850 | 26195
| | | 1 | -9 | 51 | -234 | 951 | -3573 | 12707 | -43398
| | | | 1 | -12 | 86 | -480 | 2305 | -10008 | 40426
| | | | | 1 | -15 | 130 | -855 | 4740 | -23373
| | | | | | 1 | -18 | 183 | -1386 | 8715
| | | | | | | 1 | -21 | 245
| | | | | | | | 1 | -24
| | | | | | | | | 1
| | | | | | | | |
|
|