A141688 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 6 | | 1 |
| | | | | | | | 1 | | 26 | | 26 | | 1 |
| | | | | | | 1 | | 99 | | 416 | | 99 | | 1 |
| | | | | | 1 | | 352 | | 5407 | | 5407 | | 352 | | 1 |
| | | | | 1 | | 1200 | | 62616 | | 227094 | | 62616 | | 1200 | | 1 |
| | | | 1 | | 3977 | | 673728 | | 8212854 | | 8212854 | | 673728 | | 3977 | | 1 |
| | | 1 | | 12918 | | 6889153 | | 269486766 | | 903413940 | | 269486766 | | 6889153 | | 12918 | | 1 |
| | 1 | | 41338 | | 67863290 | | 8256432767 | | 88493861004 | | 88493861004 | | 8256432767 | | 67863290 | | 41338 | | 1 |
|
A141688 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 26 | 99 | 352 | 1200 | 3977 | 12918 | 41338
| | 1 | 26 | 416 | 5407 | 62616 | 673728 | 6889153 | 67863290
| | 1 | 99 | 5407 | 227094 | 8212854 | 269486766 | 8256432767
| | 1 | 352 | 62616 | 8212854 | 903413940 | 88493861004
| | 1 | 1200 | 673728 | 269486766 | 88493861004
| | 1 | 3977 | 6889153 | 8256432767
| | 1 | 12918 | 67863290
| | 1 | 41338
| | 1
|
A141688 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 26 | 99 | 352 | 1200 | 3977 | 12918 | 41338
| | | 1 | 26 | 416 | 5407 | 62616 | 673728 | 6889153 | 67863290
| | | | 1 | 99 | 5407 | 227094 | 8212854 | 269486766 | 8256432767
| | | | | 1 | 352 | 62616 | 8212854 | 903413940 | 88493861004
| | | | | | 1 | 1200 | 673728 | 269486766 | 88493861004
| | | | | | | 1 | 3977 | 6889153 | 8256432767
| | | | | | | | 1 | 12918 | 67863290
| | | | | | | | | 1 | 41338
| | | | | | | | | | 1
|
|
