A281587 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | 1 | | 3 | | 3 | | 1 |
| | | | | | | | -1 | | 4 | | 6 | | 4 | | 1 |
| | | | | | | -4 | | -5 | | 10 | | 10 | | 5 | | 1 |
| | | | | | -14 | | -24 | | -15 | | 20 | | 15 | | 6 | | 1 |
| | | | | -34 | | -98 | | -84 | | -35 | | 35 | | 21 | | 7 | | 1 |
| | | | 69 | | -272 | | -392 | | -224 | | -70 | | 56 | | 28 | | 8 | | 1 |
| | | 496 | | 621 | | -1224 | | -1176 | | -504 | | -126 | | 84 | | 36 | | 9 | | 1 |
| | 2896 | | 4960 | | 3105 | | -4080 | | -2940 | | -1008 | | -210 | | 120 | | 45 | | 10 | | 1 |
|
A281587 as a square array
| 1 | 1 | 1 | 1 | -1 | -4 | -14 | -34 | 69 | 496 | 2896
| | 1 | 2 | 3 | 4 | -5 | -24 | -98 | -272 | 621 | 4960
| | 1 | 3 | 6 | 10 | -15 | -84 | -392 | -1224 | 3105
| | 1 | 4 | 10 | 20 | -35 | -224 | -1176 | -4080
| | 1 | 5 | 15 | 35 | -70 | -504 | -2940
| | 1 | 6 | 21 | 56 | -126 | -1008
| | 1 | 7 | 28 | 84 | -210
| | 1 | 8 | 36 | 120
| | 1 | 9 | 45
| | 1 | 10
| | 1
|
A281587 as an upper right triangle
| 1 | 1 | 1 | 1 | -1 | -4 | -14 | -34 | 69 | 496 | 2896
| | 1 | 2 | 3 | 4 | -5 | -24 | -98 | -272 | 621 | 4960
| | | 1 | 3 | 6 | 10 | -15 | -84 | -392 | -1224 | 3105
| | | | 1 | 4 | 10 | 20 | -35 | -224 | -1176 | -4080
| | | | | 1 | 5 | 15 | 35 | -70 | -504 | -2940
| | | | | | 1 | 6 | 21 | 56 | -126 | -1008
| | | | | | | 1 | 7 | 28 | 84 | -210
| | | | | | | | 1 | 8 | 36 | 120
| | | | | | | | | 1 | 9 | 45
| | | | | | | | | | 1 | 10
| | | | | | | | | | | 1
|
|
