A121585 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 0 | | 1 |
| | | | | | | | | | 1 | | 0 | | 1 |
| | | | | | | | | 3 | | 1 | | 1 | | 1 |
| | | | | | | | 12 | | 5 | | 3 | | 3 | | 1 |
| | | | | | | 60 | | 27 | | 14 | | 12 | | 6 | | 1 |
| | | | | | 360 | | 168 | | 83 | | 62 | | 36 | | 10 | | 1 |
| | | | | 2520 | | 1200 | | 583 | | 393 | | 242 | | 86 | | 15 | | 1 |
| | | | 20160 | | 9720 | | 4698 | | 2941 | | 1845 | | 758 | | 176 | | 21 | | 1 |
| | | 181440 | | 88200 | | 42606 | | 25285 | | 15856 | | 7151 | | 1990 | | 323 | | 28 | | 1 |
| | 1814400 | | 887040 |
|
A121585 as a square array
| 1 | 0 | 1 | 3 | 12 | 60 | 360 | 2520 | 20160 | 181440 | 1814400
| | 1 | 0 | 1 | 5 | 27 | 168 | 1200 | 9720 | 88200 | 887040
| | 1 | 1 | 3 | 14 | 83 | 583 | 4698 | 42606
| | 1 | 3 | 12 | 62 | 393 | 2941 | 25285
| | 1 | 6 | 36 | 242 | 1845 | 15856
| | 1 | 10 | 86 | 758 | 7151
| | 1 | 15 | 176 | 1990
| | 1 | 21 | 323
| | 1 | 28
| | 1
|
A121585 as an upper right triangle
| 1 | 0 | 1 | 3 | 12 | 60 | 360 | 2520 | 20160 | 181440 | 1814400
| | 1 | 0 | 1 | 5 | 27 | 168 | 1200 | 9720 | 88200 | 887040
| | | 1 | 1 | 3 | 14 | 83 | 583 | 4698 | 42606
| | | | 1 | 3 | 12 | 62 | 393 | 2941 | 25285
| | | | | 1 | 6 | 36 | 242 | 1845 | 15856
| | | | | | 1 | 10 | 86 | 758 | 7151
| | | | | | | 1 | 15 | 176 | 1990
| | | | | | | | 1 | 21 | 323
| | | | | | | | | 1 | 28
| | | | | | | | | | 1
| | | | | | | | | |
|
|
