A171246 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | 1 | | 3 | | 3 | | 1 |
| | | | | | | 1 | | 7 | | 13 | | 7 | | 1 |
| | | | | | 1 | | 13 | | 51 | | 51 | | 13 | | 1 |
| | | | | 1 | | 23 | | 181 | | 361 | | 181 | | 23 | | 1 |
| | | | 1 | | 34 | | 530 | | 2120 | | 2120 | | 530 | | 34 | | 1 |
| | | 1 | | 40 | | 1261 | | 10081 | | 20161 | | 10081 | | 1261 | | 40 | | 1 |
| | 1 | | 38 | | 2384 | | 38144 | | 152573 | | 152573 | | 38144 | | 2384 | | 38 | | 1 |
|
A171246 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 7 | 13 | 23 | 34 | 40 | 38
| | 1 | 3 | 13 | 51 | 181 | 530 | 1261 | 2384
| | 1 | 7 | 51 | 361 | 2120 | 10081 | 38144
| | 1 | 13 | 181 | 2120 | 20161 | 152573
| | 1 | 23 | 530 | 10081 | 152573
| | 1 | 34 | 1261 | 38144
| | 1 | 40 | 2384
| | 1 | 38
| | 1
|
A171246 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 7 | 13 | 23 | 34 | 40 | 38
| | | 1 | 3 | 13 | 51 | 181 | 530 | 1261 | 2384
| | | | 1 | 7 | 51 | 361 | 2120 | 10081 | 38144
| | | | | 1 | 13 | 181 | 2120 | 20161 | 152573
| | | | | | 1 | 23 | 530 | 10081 | 152573
| | | | | | | 1 | 34 | 1261 | 38144
| | | | | | | | 1 | 40 | 2384
| | | | | | | | | 1 | 38
| | | | | | | | | | 1
|
|
