A015110 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | -2 | | 1 |
| | | | | | | | 1 | | 7 | | 7 | | 1 |
| | | | | | | 1 | | -20 | | 70 | | -20 | | 1 |
| | | | | | 1 | | 61 | | 610 | | 610 | | 61 | | 1 |
| | | | | 1 | | -182 | | 5551 | | -15860 | | 5551 | | -182 | | 1 |
| | | | 1 | | 547 | | 49777 | | 433771 | | 433771 | | 49777 | | 547 | | 1 |
| | | 1 | | -1640 | | 448540 | | -11662040 | | 35569222 | | -11662040 | | 448540 | | -1640 | | 1 |
| | 1 | | 4921 | | 4035220 | | 315323620 |
|
A015110 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | -2 | 7 | -20 | 61 | -182 | 547 | -1640 | 4921
| | 1 | 7 | 70 | 610 | 5551 | 49777 | 448540 | 4035220
| | 1 | -20 | 610 | -15860 | 433771 | -11662040 | 315323620
| | 1 | 61 | 5551 | 433771 | 35569222
| | 1 | -182 | 49777 | -11662040
| | 1 | 547 | 448540
| | 1 | -1640
| | 1
|
A015110 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | -2 | 7 | -20 | 61 | -182 | 547 | -1640 | 4921
| | | 1 | 7 | 70 | 610 | 5551 | 49777 | 448540 | 4035220
| | | | 1 | -20 | 610 | -15860 | 433771 | -11662040 | 315323620
| | | | | 1 | 61 | 5551 | 433771 | 35569222
| | | | | | 1 | -182 | 49777 | -11662040
| | | | | | | 1 | 547 | 448540
| | | | | | | | 1 | -1640
| | | | | | | | | 1
| | | | | | | | |
|
|
