A216917 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 2 | | 1 | | 1 |
| | | | | | | | | | 6 | | 1 | | 1 | | 1 |
| | | | | | | | | 12 | | 3 | | 2 | | 1 | | 1 |
| | | | | | | | 60 | | 3 | | 2 | | 1 | | 1 | | 1 |
| | | | | | | 60 | | 15 | | 4 | | 3 | | 2 | | 1 | | 1 |
| | | | | | 420 | | 15 | | 20 | | 3 | | 6 | | 1 | | 1 | | 1 |
| | | | | 840 | | 105 | | 20 | | 15 | | 12 | | 1 | | 2 | | 1 | | 1 |
| | | | 2520 | | 105 | | 140 | | 15 | | 12 | | 1 | | 6 | | 1 | | 1 | | 1 |
| | | 2520 | | 315 | | 280 | | 105 | | 12 | | 5 | | 12 | | 3 | | 2 | | 1 | | 1 |
| | 27720 | | 315 | | 280 | | 105 | | 84 |
|
A216917 as a square array
| 1 | 1 | 2 | 6 | 12 | 60 | 60 | 420 | 840 | 2520 | 2520 | 27720
| | 1 | 1 | 1 | 3 | 3 | 15 | 15 | 105 | 105 | 315 | 315
| | 1 | 1 | 2 | 2 | 4 | 20 | 20 | 140 | 280 | 280
| | 1 | 1 | 1 | 3 | 3 | 15 | 15 | 105 | 105
| | 1 | 1 | 2 | 6 | 12 | 12 | 12 | 84
| | 1 | 1 | 1 | 1 | 1 | 5
| | 1 | 1 | 2 | 6 | 12
| | 1 | 1 | 1 | 3
| | 1 | 1 | 2
| | 1 | 1
| | 1
|
A216917 as an upper right triangle
| 1 | 1 | 2 | 6 | 12 | 60 | 60 | 420 | 840 | 2520 | 2520 | 27720
| | 1 | 1 | 1 | 3 | 3 | 15 | 15 | 105 | 105 | 315 | 315
| | | 1 | 1 | 2 | 2 | 4 | 20 | 20 | 140 | 280 | 280
| | | | 1 | 1 | 1 | 3 | 3 | 15 | 15 | 105 | 105
| | | | | 1 | 1 | 2 | 6 | 12 | 12 | 12 | 84
| | | | | | 1 | 1 | 1 | 1 | 1 | 5
| | | | | | | 1 | 1 | 2 | 6 | 12
| | | | | | | | 1 | 1 | 1 | 3
| | | | | | | | | 1 | 1 | 2
| | | | | | | | | | 1 | 1
| | | | | | | | | | | 1
| | | | | | | | | | |
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