A168517 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 7 | | 1 |
| | | | | | | | 1 | | 27 | | 27 | | 1 |
| | | | | | | 1 | | 87 | | 260 | | 87 | | 1 |
| | | | | | 1 | | 263 | | 1828 | | 1828 | | 263 | | 1 |
| | | | | 1 | | 779 | | 11131 | | 24746 | | 11131 | | 779 | | 1 |
| | | | 1 | | 2299 | | 62793 | | 267515 | | 267515 | | 62793 | | 2299 | | 1 |
| | | 1 | | 6799 | | 338902 | | 2529377 | | 4753074 | | 2529377 | | 338902 | | 6799 | | 1 |
| | 1 | | 20175 | | 1780242 | | 21935526 | | 70068408 | | 70068408 | | 21935526 | | 1780242 | | 20175 | | 1 |
|
A168517 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 7 | 27 | 87 | 263 | 779 | 2299 | 6799 | 20175
| | 1 | 27 | 260 | 1828 | 11131 | 62793 | 338902 | 1780242
| | 1 | 87 | 1828 | 24746 | 267515 | 2529377 | 21935526
| | 1 | 263 | 11131 | 267515 | 4753074 | 70068408
| | 1 | 779 | 62793 | 2529377 | 70068408
| | 1 | 2299 | 338902 | 21935526
| | 1 | 6799 | 1780242
| | 1 | 20175
| | 1
|
A168517 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 7 | 27 | 87 | 263 | 779 | 2299 | 6799 | 20175
| | | 1 | 27 | 260 | 1828 | 11131 | 62793 | 338902 | 1780242
| | | | 1 | 87 | 1828 | 24746 | 267515 | 2529377 | 21935526
| | | | | 1 | 263 | 11131 | 267515 | 4753074 | 70068408
| | | | | | 1 | 779 | 62793 | 2529377 | 70068408
| | | | | | | 1 | 2299 | 338902 | 21935526
| | | | | | | | 1 | 6799 | 1780242
| | | | | | | | | 1 | 20175
| | | | | | | | | | 1
|
|
