A059720 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 0 | | 1 |
| | | | | | | | | 0 | | 2 | | 1 |
| | | | | | | | 0 | | 5 | | 6 | | 2 |
| | | | | | | 0 | | 15 | | 29 | | 20 | | 5 |
| | | | | | 0 | | 55 | | 148 | | 158 | | 80 | | 16 |
| | | | | 0 | | 239 | | 818 | | 1185 | | 910 | | 366 | | 61 |
| | | | 0 | | 1199 | | 4964 | | 9094 | | 9392 | | 5696 | | 1904 | | 272 |
| | | 0 | | 6810 | | 32989 | | 73026 | | 94833 | | 77011 | | 38719 | | 11080 | | 1385 |
| | 0 | | 43108 | | 238931 | | 619904 | | 970152 | | 988040 | | 663904 | | 285424 | | 71424 | | 7936 |
|
A059720 as a square array
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 2 | 5 | 15 | 55 | 239 | 1199 | 6810 | 43108
| 1 | 6 | 29 | 148 | 818 | 4964 | 32989 | 238931
| 2 | 20 | 158 | 1185 | 9094 | 73026 | 619904
| 5 | 80 | 910 | 9392 | 94833 | 970152
| 16 | 366 | 5696 | 77011 | 988040
| 61 | 1904 | 38719 | 663904
| 272 | 11080 | 285424
| 1385 | 71424
| 7936
|
A059720 as an upper right triangle
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 2 | 5 | 15 | 55 | 239 | 1199 | 6810 | 43108
| | | 1 | 6 | 29 | 148 | 818 | 4964 | 32989 | 238931
| | | | 2 | 20 | 158 | 1185 | 9094 | 73026 | 619904
| | | | | 5 | 80 | 910 | 9392 | 94833 | 970152
| | | | | | 16 | 366 | 5696 | 77011 | 988040
| | | | | | | 61 | 1904 | 38719 | 663904
| | | | | | | | 272 | 11080 | 285424
| | | | | | | | | 1385 | 71424
| | | | | | | | | | 7936
|
|