A211709 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 4 | | 1 |
| | | | | | | 1 | | 18 | | 18 | | 1 |
| | | | | | 1 | | 108 | | 588 | | 108 | | 1 |
| | | | | 1 | | 780 | | 30240 | | 30240 | | 780 | | 1 |
| | | | 1 | | 6600 | | 2277600 | | 17427192 | | 2277600 | | 6600 | | 1 |
| | | 1 | | 63840 | | 234440280 | | 17741309400 | | 17741309400 | | 234440280 | | 63840 | | 1 |
| | 1 | | 693840 | | 31448589480 |
|
A211709 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 18 | 108 | 780 | 6600 | 63840 | 693840
| | 1 | 18 | 588 | 30240 | 2277600 | 234440280 | 31448589480
| | 1 | 108 | 30240 | 17427192 | 17741309400
| | 1 | 780 | 2277600 | 17741309400
| | 1 | 6600 | 234440280
| | 1 | 63840
| | 1
|
A211709 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 18 | 108 | 780 | 6600 | 63840 | 693840
| | | 1 | 18 | 588 | 30240 | 2277600 | 234440280 | 31448589480
| | | | 1 | 108 | 30240 | 17427192 | 17741309400
| | | | | 1 | 780 | 2277600 | 17741309400
| | | | | | 1 | 6600 | 234440280
| | | | | | | 1 | 63840
| | | | | | | | 1
| | | | | | | |
|
|
