A287020 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 1 | | 1 |
| | | | | | | 1 | | 1 | | 6 |
| | | | | | 1 | | 1 | | 46 | | 1926 |
| | | | | 1 | | 12 | | 648 | | 92544 | | 15767640 |
| | | | 1 | | 30 | | 6312 | | 3943710 | | 2933201376 | | 2061379857600 |
| | | 1 | | 90 | | 92400 | | 192994200 | | 577186150464 | | 1605824110657800 | | 5363188066566330000 |
| | 1 | | 318 | | 1051140 | | 10266445476 | | 118129589107200 | | 1340797019145183600 |
|
A287020 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 1 | 12 | 30 | 90 | 318
| | 6 | 46 | 648 | 6312 | 92400 | 1051140
| | 1926 | 92544 | 3943710 | 192994200 | 10266445476
| | 15767640 | 2933201376 | 577186150464 | 118129589107200
| | 2061379857600 | 1605824110657800 | 1340797019145183600
| | 5363188066566330000
|
A287020 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 1 | 12 | 30 | 90 | 318
| | | 6 | 46 | 648 | 6312 | 92400 | 1051140
| | | | 1926 | 92544 | 3943710 | 192994200 | 10266445476
| | | | | 15767640 | 2933201376 | 577186150464 | 118129589107200
| | | | | | 2061379857600 | 1605824110657800 | 1340797019145183600
| | | | | | | 5363188066566330000
| | | | | | |
|
|
