A118687 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | -1 |
| | | | | | | | | 1 | | -2 | | 1 |
| | | | | | | | 1 | | -3 | | 3 | | -1 |
| | | | | | | 1 | | -4 | | 6 | | -4 | | 1 |
| | | | | | 1 | | -8 | | 22 | | -28 | | 17 | | -4 |
| | | | | 1 | | -12 | | 54 | | -116 | | 129 | | -72 | | 16 |
| | | | 1 | | -36 | | 342 | | -1412 | | 2913 | | -3168 | | 1744 | | -384 |
| | | 1 | | -60 | | 1206 | | -9620 | | 36801 | | -73080 | | 77776 | | -42240 | | 9216 |
| | 1 | | -252 | | 12726 | | -241172 | | 1883841 | | -7138872 | | 14109136 | | -14975232 | | 8119296 | | -1769472 |
|
A118687 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | -1 | -2 | -3 | -4 | -8 | -12 | -36 | -60 | -252
| | 1 | 3 | 6 | 22 | 54 | 342 | 1206 | 12726
| | -1 | -4 | -28 | -116 | -1412 | -9620 | -241172
| | 1 | 17 | 129 | 2913 | 36801 | 1883841
| | -4 | -72 | -3168 | -73080 | -7138872
| | 16 | 1744 | 77776 | 14109136
| | -384 | -42240 | -14975232
| | 9216 | 8119296
| | -1769472
|
A118687 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | -1 | -2 | -3 | -4 | -8 | -12 | -36 | -60 | -252
| | | 1 | 3 | 6 | 22 | 54 | 342 | 1206 | 12726
| | | | -1 | -4 | -28 | -116 | -1412 | -9620 | -241172
| | | | | 1 | 17 | 129 | 2913 | 36801 | 1883841
| | | | | | -4 | -72 | -3168 | -73080 | -7138872
| | | | | | | 16 | 1744 | 77776 | 14109136
| | | | | | | | -384 | -42240 | -14975232
| | | | | | | | | 9216 | 8119296
| | | | | | | | | | -1769472
|
|
