A074080 formatted as a triangular array:
| | | | | | | | | | | 1 | | | | | | | | | | | |
| | | | | | | | | | 0 | | 1 | | | | | | | | | | |
| | | | | | | | | 1 | | 0 | | 1 | | | | | | | | | |
| | | | | | | | 0 | | 1 | | 1 | | 1 | | | | | | | | |
| | | | | | | 0 | | 1 | | 2 | | 2 | | 1 | | | | | | | |
| | | | | | 0 | | 0 | | 3 | | 5 | | 3 | | 1 | | | | | | |
| | | | | 1 | | 0 | | 3 | | 10 | | 9 | | 4 | | 1 | | | | | |
| | | | 0 | | 1 | | 3 | | 17 | | 24 | | 14 | | 5 | | 1 | | | | |
| | | 0 | | 1 | | 3 | | 28 | | 57 | | 44 | | 20 | | 6 | | 1 | | | |
| | 0 | | 0 | | 5 | | 41 | | 128 | | 128 | | 71 | | 27 | | 7 | | 1 | | |
| 0 | | 1 | | 4 | | 60 | | 271 | | 354 | | 234 | | 106 | | 35 | | 8 | | 1 | |
| 0 | | 0 | | 5 | | 81 | | 549 | | 937 | | 738 | | 384 | | 150 | | 44 | | 9 | | 1 |
A074080 formatted as a square array:
| 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | |
| 1 | 1 | 2 | 3 | 3 | 3 | 3 | 5 | 4 | 5 | | |
| 1 | 2 | 5 | 10 | 17 | 28 | 41 | 60 | 81 | | | |
| 1 | 3 | 9 | 24 | 57 | 128 | 271 | 549 | | | | |
| 1 | 4 | 14 | 44 | 128 | 354 | 937 | | | | | |
| 1 | 5 | 20 | 71 | 234 | 738 | | | | | | |
| 1 | 6 | 27 | 106 | 384 | | | | | | | |
| 1 | 7 | 35 | 150 | | | | | | | | |
| 1 | 8 | 44 | | | | | | | | | |
| 1 | 9 | | | | | | | | | | |
| 1 | | | | | | | | | | | |
A074080 formatted as an upper right triangle:
| 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 1 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 |
| | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 5 | 4 | 5 |
| | | 1 | 2 | 5 | 10 | 17 | 28 | 41 | 60 | 81 |
| | | | 1 | 3 | 9 | 24 | 57 | 128 | 271 | 549 |
| | | | | 1 | 4 | 14 | 44 | 128 | 354 | 937 |
| | | | | | 1 | 5 | 20 | 71 | 234 | 738 |
| | | | | | | 1 | 6 | 27 | 106 | 384 |
| | | | | | | | 1 | 7 | 35 | 150 |
| | | | | | | | | 1 | 8 | 44 |
| | | | | | | | | | 1 | 9 |
| | | | | | | | | | | 1 |
|