A180048 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 0 | | 1 |
| | | | | | | | | | | 2 | | 0 | | 1 |
| | | | | | | | | | 0 | | 5 | | 0 | | 1 |
| | | | | | | | | 8 | | 0 | | 9 | | 0 | | 1 |
| | | | | | | | 0 | | 33 | | 0 | | 14 | | 0 | | 1 |
| | | | | | | 48 | | 0 | | 87 | | 0 | | 20 | | 0 | | 1 |
| | | | | | 0 | | 279 | | 0 | | 185 | | 0 | | 27 | | 0 | | 1 |
| | | | | 384 | | 0 | | 975 | | 0 | | 345 | | 0 | | 35 | | 0 | | 1 |
| | | | 0 | | 2895 | | 0 | | 2640 | | 0 | | 588 | | 0 | | 44 | | 0 | | 1 |
| | | 3840 | | 0 | | 12645 | | 0 | | 6090 | | 0 | | 938 | | 0 | | 54 | | 0 | | 1 |
| | 0 | | 35685 | | 0 | | 41685 | | 0 | | 12558 | | 0 | | 1422 | | 0 | | 65 |
|
A180048 as a square array
1 | 0 | 2 | 0 | 8 | 0 | 48 | 0 | 384 | 0 | 3840 | 0
| 1 | 0 | 5 | 0 | 33 | 0 | 279 | 0 | 2895 | 0 | 35685
| 1 | 0 | 9 | 0 | 87 | 0 | 975 | 0 | 12645 | 0
| 1 | 0 | 14 | 0 | 185 | 0 | 2640 | 0 | 41685
| 1 | 0 | 20 | 0 | 345 | 0 | 6090 | 0
| 1 | 0 | 27 | 0 | 588 | 0 | 12558
| 1 | 0 | 35 | 0 | 938 | 0
| 1 | 0 | 44 | 0 | 1422
| 1 | 0 | 54 | 0
| 1 | 0 | 65
| 1
|
A180048 as an upper right triangle
1 | 0 | 2 | 0 | 8 | 0 | 48 | 0 | 384 | 0 | 3840 | 0
| | 1 | 0 | 5 | 0 | 33 | 0 | 279 | 0 | 2895 | 0 | 35685
| | | 1 | 0 | 9 | 0 | 87 | 0 | 975 | 0 | 12645 | 0
| | | | 1 | 0 | 14 | 0 | 185 | 0 | 2640 | 0 | 41685
| | | | | 1 | 0 | 20 | 0 | 345 | 0 | 6090 | 0
| | | | | | 1 | 0 | 27 | 0 | 588 | 0 | 12558
| | | | | | | 1 | 0 | 35 | 0 | 938 | 0
| | | | | | | | 1 | 0 | 44 | 0 | 1422
| | | | | | | | | 1 | 0 | 54 | 0
| | | | | | | | | | 1 | 0 | 65
| | | | | | | | | | | 1
| | | | | | | | | | |
|
|