A174186 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 6 | | 1 |
| | | | | | | 1 | | 30 | | 30 | | 1 |
| | | | | | 1 | | 240 | | 1200 | | 240 | | 1 |
| | | | | 1 | | 1560 | | 62400 | | 62400 | | 1560 | | 1 |
| | | | 1 | | 10920 | | 2839200 | | 22713600 | | 2839200 | | 10920 | | 1 |
| | | 1 | | 74256 | | 135145920 | | 7027587840 | | 7027587840 | | 135145920 | | 74256 | | 1 |
| | 1 | | 510510 | | 6318071760 | | 2299778120640 |
|
A174186 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 30 | 240 | 1560 | 10920 | 74256 | 510510
| | 1 | 30 | 1200 | 62400 | 2839200 | 135145920 | 6318071760
| | 1 | 240 | 62400 | 22713600 | 7027587840 | 2299778120640
| | 1 | 1560 | 2839200 | 7027587840
| | 1 | 10920 | 135145920
| | 1 | 74256
| | 1
|
A174186 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 30 | 240 | 1560 | 10920 | 74256 | 510510
| | | 1 | 30 | 1200 | 62400 | 2839200 | 135145920 | 6318071760
| | | | 1 | 240 | 62400 | 22713600 | 7027587840 | 2299778120640
| | | | | 1 | 1560 | 2839200 | 7027587840
| | | | | | 1 | 10920 | 135145920
| | | | | | | 1 | 74256
| | | | | | | | 1
| | | | | | | |
|
|
