A176418 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 3 | | 1 |
| | | | | | | 1 | | 21 | | 21 | | 1 |
| | | | | | 1 | | 217 | | 497 | | 217 | | 1 |
| | | | | 1 | | 2785 | | 14401 | | 14401 | | 2785 | | 1 |
| | | | 1 | | 42961 | | 527809 | | 1218961 | | 527809 | | 42961 | | 1 |
| | | 1 | | 781921 | | 23866081 | | 133305985 | | 133305985 | | 23866081 | | 781921 | | 1 |
| | 1 | | 16490881 | | 1290574081 | | 18068561281 |
|
A176418 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 21 | 217 | 2785 | 42961 | 781921 | 16490881
| | 1 | 21 | 497 | 14401 | 527809 | 23866081 | 1290574081
| | 1 | 217 | 14401 | 1218961 | 133305985 | 18068561281
| | 1 | 2785 | 527809 | 133305985
| | 1 | 42961 | 23866081
| | 1 | 781921
| | 1
|
A176418 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 21 | 217 | 2785 | 42961 | 781921 | 16490881
| | | 1 | 21 | 497 | 14401 | 527809 | 23866081 | 1290574081
| | | | 1 | 217 | 14401 | 1218961 | 133305985 | 18068561281
| | | | | 1 | 2785 | 527809 | 133305985
| | | | | | 1 | 42961 | 23866081
| | | | | | | 1 | 781921
| | | | | | | | 1
| | | | | | | |
|
|
