A215120 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 3 | | 3 | | 1 |
| | | | | | | | 9 | | 9 | | 5 | | 1 |
| | | | | | | 33 | | 33 | | 23 | | 7 | | 1 |
| | | | | | 135 | | 135 | | 109 | | 43 | | 9 | | 1 |
| | | | | 633 | | 633 | | 557 | | 261 | | 69 | | 11 | | 1 |
| | | | 3207 | | 3207 | | 2975 | | 1641 | | 507 | | 101 | | 13 | | 1 |
| | | 17589 | | 17589 | | 16825 | | 10503 | | 3787 | | 869 | | 139 | | 15 | | 1 |
| | 102627 | | 102627 | | 100007 | | 69077 | | 28205 | | 7487 | | 1369 | | 183 | | 17 | | 1 |
|
A215120 as a square array
1 | 1 | 3 | 9 | 33 | 135 | 633 | 3207 | 17589 | 102627
| 1 | 3 | 9 | 33 | 135 | 633 | 3207 | 17589 | 102627
| 1 | 5 | 23 | 109 | 557 | 2975 | 16825 | 100007
| 1 | 7 | 43 | 261 | 1641 | 10503 | 69077
| 1 | 9 | 69 | 507 | 3787 | 28205
| 1 | 11 | 101 | 869 | 7487
| 1 | 13 | 139 | 1369
| 1 | 15 | 183
| 1 | 17
| 1
|
A215120 as an upper right triangle
1 | 1 | 3 | 9 | 33 | 135 | 633 | 3207 | 17589 | 102627
| | 1 | 3 | 9 | 33 | 135 | 633 | 3207 | 17589 | 102627
| | | 1 | 5 | 23 | 109 | 557 | 2975 | 16825 | 100007
| | | | 1 | 7 | 43 | 261 | 1641 | 10503 | 69077
| | | | | 1 | 9 | 69 | 507 | 3787 | 28205
| | | | | | 1 | 11 | 101 | 869 | 7487
| | | | | | | 1 | 13 | 139 | 1369
| | | | | | | | 1 | 15 | 183
| | | | | | | | | 1 | 17
| | | | | | | | | | 1
|
|