A204387 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 0 | | 1 |
| | | | | | | | 0 | | 2 | | 1 |
| | | | | | | 0 | | 0 | | 4 | | 1 |
| | | | | | 0 | | 0 | | 3 | | 6 | | 1 |
| | | | | 0 | | 0 | | 4 | | 10 | | 8 | | 1 |
| | | | 0 | | 0 | | 0 | | 12 | | 21 | | 10 | | 1 |
| | | 0 | | 0 | | 0 | | 12 | | 32 | | 28 | | 12 | | 1 |
| | 0 | | 0 | | 0 | | 6 | | 45 |
|
A204387 as a square array
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 4 | 3 | 4 | 0 | 0 | 0
| | 1 | 6 | 10 | 12 | 12 | 6
| | 1 | 8 | 21 | 32 | 45
| | 1 | 10 | 28
| | 1 | 12
| | 1
|
A204387 as an upper right triangle
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0
| | | 1 | 4 | 3 | 4 | 0 | 0 | 0
| | | | 1 | 6 | 10 | 12 | 12 | 6
| | | | | 1 | 8 | 21 | 32 | 45
| | | | | | 1 | 10 | 28
| | | | | | | 1 | 12
| | | | | | | | 1
| | | | | | | |
|
|
