A171651 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 2 | | 1 |
| | | | | | | | | 5 | | 4 | | 1 |
| | | | | | | | 13 | | 15 | | 6 | | 1 |
| | | | | | | 35 | | 52 | | 30 | | 8 | | 1 |
| | | | | | 96 | | 175 | | 130 | | 50 | | 10 | | 1 |
| | | | | 267 | | 576 | | 525 | | 260 | | 75 | | 12 | | 1 |
| | | | 750 | | 1869 | | 2016 | | 1225 | | 455 | | 105 | | 14 | | 1 |
| | | 2123 | | 6000 | | 7476 | | 5376 | | 2450 | | 728 | | 140 | | 16 | | 1 |
| | 6046 | | 19107 | | 27000 | | 22428 | | 12096 | | 4410 | | 1092 | | 180 | | 18 | | 1 |
|
A171651 as a square array
| 1 | 2 | 5 | 13 | 35 | 96 | 267 | 750 | 2123 | 6046
| | 1 | 4 | 15 | 52 | 175 | 576 | 1869 | 6000 | 19107
| | 1 | 6 | 30 | 130 | 525 | 2016 | 7476 | 27000
| | 1 | 8 | 50 | 260 | 1225 | 5376 | 22428
| | 1 | 10 | 75 | 455 | 2450 | 12096
| | 1 | 12 | 105 | 728 | 4410
| | 1 | 14 | 140 | 1092
| | 1 | 16 | 180
| | 1 | 18
| | 1
|
A171651 as an upper right triangle
| 1 | 2 | 5 | 13 | 35 | 96 | 267 | 750 | 2123 | 6046
| | 1 | 4 | 15 | 52 | 175 | 576 | 1869 | 6000 | 19107
| | | 1 | 6 | 30 | 130 | 525 | 2016 | 7476 | 27000
| | | | 1 | 8 | 50 | 260 | 1225 | 5376 | 22428
| | | | | 1 | 10 | 75 | 455 | 2450 | 12096
| | | | | | 1 | 12 | 105 | 728 | 4410
| | | | | | | 1 | 14 | 140 | 1092
| | | | | | | | 1 | 16 | 180
| | | | | | | | | 1 | 18
| | | | | | | | | | 1
|
|
