A255740 as a triangular array
| | | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | | 1 | | 0 |
| | | | | | | | | | | | | 1 | | 1 | | 0 |
| | | | | | | | | | | | 1 | | 2 | | 1 | | 0 |
| | | | | | | | | | | 1 | | 3 | | 2 | | 0 | | 0 |
| | | | | | | | | | 1 | | 4 | | 3 | | 2 | | 1 | | 0 |
| | | | | | | | | 1 | | 5 | | 4 | | 6 | | 2 | | 0 | | 0 |
| | | | | | | | 1 | | 6 | | 5 | | 12 | | 3 | | 2 | | 0 | | 0 |
| | | | | | | 1 | | 7 | | 6 | | 20 | | 4 | | 6 | | 2 | | 0 | | 0 |
| | | | | | 1 | | 8 | | 7 | | 30 | | 5 | | 12 | | 6 | | 2 | | 1 | | 0 |
| | | | | 1 | | 9 | | 8 | | 42 | | 6 | | 20 | | 12 | | 12 | | 2 | | 0 | | 0 |
| | | | 1 | | 10 | | 9 | | 56 | | 7 | | 30 | | 20 | | 36 | | 3 | | 2 | | 0 | | 0 |
| | | 1 | | 11 | | 10 | | 72 | | 8 | | 42 | | 30 | | 80 | | 4 | | 6 | | 2 | | 0 | | 0 |
| | 1 | | 12 | | 11 | | 90 | | 9 | | 56 | | 42 | | 150 | | 5 | | 12 | | 6 | | 2 | | 0 | | 0 |
|
A255740 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| 0 | 0 | 2 | 6 | 12 | 20 | 30 | 42 | 56 | 72 | 90
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| 0 | 0 | 2 | 6 | 12 | 20 | 30 | 42 | 56
| 0 | 0 | 2 | 6 | 12 | 20 | 30 | 42
| 0 | 0 | 2 | 12 | 36 | 80 | 150
| 0 | 1 | 2 | 3 | 4 | 5
| 0 | 0 | 2 | 6 | 12
| 0 | 0 | 2 | 6
| 0 | 0 | 2
| 0 | 0
| 0
|
A255740 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| | | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | | | 0 | 0 | 2 | 6 | 12 | 20 | 30 | 42 | 56 | 72 | 90
| | | | | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
| | | | | | 0 | 0 | 2 | 6 | 12 | 20 | 30 | 42 | 56
| | | | | | | 0 | 0 | 2 | 6 | 12 | 20 | 30 | 42
| | | | | | | | 0 | 0 | 2 | 12 | 36 | 80 | 150
| | | | | | | | | 0 | 1 | 2 | 3 | 4 | 5
| | | | | | | | | | 0 | 0 | 2 | 6 | 12
| | | | | | | | | | | 0 | 0 | 2 | 6
| | | | | | | | | | | | 0 | 0 | 2
| | | | | | | | | | | | | 0 | 0
| | | | | | | | | | | | | | 0
|
|