A187566 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 3 | | -2 |
| | | | | | | | | 4 | | -6 | | 4 |
| | | | | | | | 7 | | -8 | | 12 | | -8 |
| | | | | | | 6 | | -14 | | 16 | | -24 | | 21 |
| | | | | | 12 | | -12 | | 28 | | -32 | | 63 | | -52 |
| | | | | 8 | | -24 | | 24 | | -56 | | 84 | | -156 | | 131 |
| | | | 15 | | -16 | | 48 | | -48 | | 147 | | -208 | | 393 | | -316 |
| | | 13 | | -30 | | 32 | | -96 | | 126 | | -364 | | 524 | | -948 | | 765 |
| | 18 | | -26 | | 60 | | -64 | | 252 | | -312 | | 917 | | -1264 | | 2295 | | -1846 |
|
A187566 as a square array
1 | 3 | 4 | 7 | 6 | 12 | 8 | 15 | 13 | 18
| -2 | -6 | -8 | -14 | -12 | -24 | -16 | -30 | -26
| 4 | 12 | 16 | 28 | 24 | 48 | 32 | 60
| -8 | -24 | -32 | -56 | -48 | -96 | -64
| 21 | 63 | 84 | 147 | 126 | 252
| -52 | -156 | -208 | -364 | -312
| 131 | 393 | 524 | 917
| -316 | -948 | -1264
| 765 | 2295
| -1846
|
A187566 as an upper right triangle
1 | 3 | 4 | 7 | 6 | 12 | 8 | 15 | 13 | 18
| | -2 | -6 | -8 | -14 | -12 | -24 | -16 | -30 | -26
| | | 4 | 12 | 16 | 28 | 24 | 48 | 32 | 60
| | | | -8 | -24 | -32 | -56 | -48 | -96 | -64
| | | | | 21 | 63 | 84 | 147 | 126 | 252
| | | | | | -52 | -156 | -208 | -364 | -312
| | | | | | | 131 | 393 | 524 | 917
| | | | | | | | -316 | -948 | -1264
| | | | | | | | | 765 | 2295
| | | | | | | | | | -1846
|
|