A156764 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 6 | | 1 |
| | | | | | | 1 | | 40 | | 40 | | 1 |
| | | | | | 1 | | 300 | | 2000 | | 300 | | 1 |
| | | | | 1 | | 2520 | | 126000 | | 126000 | | 2520 | | 1 |
| | | | 1 | | 23520 | | 9878400 | | 74088000 | | 9878400 | | 23520 | | 1 |
| | | 1 | | 241920 | | 948326400 | | 59744563200 | | 59744563200 | | 948326400 | | 241920 | | 1 |
| | 1 | | 2721600 | | 109734912000 | | 64524128256000 | | 542002677350400 | | 64524128256000 | | 109734912000 | | 2721600 | | 1 |
|
A156764 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 40 | 300 | 2520 | 23520 | 241920 | 2721600
| | 1 | 40 | 2000 | 126000 | 9878400 | 948326400 | 109734912000
| | 1 | 300 | 126000 | 74088000 | 59744563200 | 64524128256000
| | 1 | 2520 | 9878400 | 59744563200 | 542002677350400
| | 1 | 23520 | 948326400 | 64524128256000
| | 1 | 241920 | 109734912000
| | 1 | 2721600
| | 1
|
A156764 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 40 | 300 | 2520 | 23520 | 241920 | 2721600
| | | 1 | 40 | 2000 | 126000 | 9878400 | 948326400 | 109734912000
| | | | 1 | 300 | 126000 | 74088000 | 59744563200 | 64524128256000
| | | | | 1 | 2520 | 9878400 | 59744563200 | 542002677350400
| | | | | | 1 | 23520 | 948326400 | 64524128256000
| | | | | | | 1 | 241920 | 109734912000
| | | | | | | | 1 | 2721600
| | | | | | | | | 1
|
|
