A128807 formatted as a triangular array:
| | | | | | | | | 1 | | | | | | | | | |
| | | | | | | | 2 | | 1 | | | | | | | | |
| | | | | | | 1 | | 2 | | 1 | | | | | | | |
| | | | | | 3 | | 4 | | 3 | | 1 | | | | | | |
| | | | | 1 | | 4 | | 6 | | 4 | | 1 | | | | | |
| | | | 2 | | 7 | | 11 | | 10 | | 5 | | 1 | | | | |
| | | 1 | | 6 | | 15 | | 20 | | 15 | | 6 | | 1 | | | |
| | 4 | | 11 | | 24 | | 36 | | 35 | | 21 | | 7 | | 1 | | |
| 1 | | 8 | | 28 | | 56 | | 70 | | 56 | | 28 | | 8 | | 1 | |
| 2 | | 13 | | 42 | | 88 | | 127 | | 126 | | 84 | | 36 | | 9 | | 1 |
A128807 formatted as a square array:
| 1 | 2 | 1 | 3 | 1 | 2 | 1 | 4 | 1 | 2 |
| 1 | 2 | 4 | 4 | 7 | 6 | 11 | 8 | 13 | |
| 1 | 3 | 6 | 11 | 15 | 24 | 28 | 42 | | |
| 1 | 4 | 10 | 20 | 36 | 56 | 88 | | | |
| 1 | 5 | 15 | 35 | 70 | 127 | | | | |
| 1 | 6 | 21 | 56 | 126 | | | | | |
| 1 | 7 | 28 | 84 | | | | | | |
| 1 | 8 | 36 | | | | | | | |
| 1 | 9 | | | | | | | | |
| 1 | | | | | | | | | |
A128807 formatted as an upper right triangle:
| 1 | 2 | 1 | 3 | 1 | 2 | 1 | 4 | 1 | 2 |
| 1 | 2 | 4 | 4 | 7 | 6 | 11 | 8 | 13 |
| | 1 | 3 | 6 | 11 | 15 | 24 | 28 | 42 |
| | | 1 | 4 | 10 | 20 | 36 | 56 | 88 |
| | | | 1 | 5 | 15 | 35 | 70 | 127 |
| | | | | 1 | 6 | 21 | 56 | 126 |
| | | | | | 1 | 7 | 28 | 84 |
| | | | | | | 1 | 8 | 36 |
| | | | | | | | 1 | 9 |
| | | | | | | | | 1 |
|
