A186871 as a triangular array
| | | | | | | | 0 |
| | | | | | | | 171 | | 171 |
| | | | | | | 361 | | 2121 | | 361 |
| | | | | | 3645 | | 24414 | | 24414 | | 3645 |
| | | | | 13365 | | 285724 | | 431016 | | 285724 | | 13365 |
| | | | 94905 | | 3409112 | | 12048996 | | 12048996 | | 3409112 | | 94905 |
| | | 424845 | | 40893800 | | 270129432 | | 630235528 | | 270129432 | | 40893800 | | 424845 |
| | 2682129 | | 492154924 |
|
A186871 as a square array
0 | 171 | 361 | 3645 | 13365 | 94905 | 424845 | 2682129
| 171 | 2121 | 24414 | 285724 | 3409112 | 40893800 | 492154924
| 361 | 24414 | 431016 | 12048996 | 270129432
| 3645 | 285724 | 12048996 | 630235528
| 13365 | 3409112 | 270129432
| 94905 | 40893800
| 424845
|
A186871 as an upper right triangle
0 | 171 | 361 | 3645 | 13365 | 94905 | 424845 | 2682129
| | 171 | 2121 | 24414 | 285724 | 3409112 | 40893800 | 492154924
| | | 361 | 24414 | 431016 | 12048996 | 270129432
| | | | 3645 | 285724 | 12048996 | 630235528
| | | | | 13365 | 3409112 | 270129432
| | | | | | 94905 | 40893800
| | | | | | | 424845
| | | | | | |
|
|