A051289 formatted as a triangular array:
| | | | | | | | 1 | | | | | | | | |
| | | | | | | 2 | | 1 | | | | | | | |
| | | | | | 4 | | 4 | | 2 | | | | | | |
| | | | | 8 | | 12 | | 12 | | 3 | | | | | |
| | | | 16 | | 32 | | 48 | | 24 | | 6 | | | | |
| | | 32 | | 80 | | 160 | | 120 | | 60 | | 10 | | | |
| | 64 | | 192 | | 480 | | 480 | | 360 | | 120 | | 20 | | |
| 128 | | 448 | | 1344 | | 1680 | | 1680 | | 840 | | 280 | | 35 | |
| 256 | | 1024 | | 3584 | | 5376 | | 6720 | | 4480 | | 2240 | | 560 | | 70 |
A051289 formatted as a square array:
| 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 |
| 1 | 4 | 12 | 32 | 80 | 192 | 448 | 1024 | |
| 2 | 12 | 48 | 160 | 480 | 1344 | 3584 | | |
| 3 | 24 | 120 | 480 | 1680 | 5376 | | | |
| 6 | 60 | 360 | 1680 | 6720 | | | | |
| 10 | 120 | 840 | 4480 | | | | | |
| 20 | 280 | 2240 | | | | | | |
| 35 | 560 | | | | | | | |
| 70 | | | | | | | | |
A051289 formatted as an upper right triangle:
| 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 |
| 1 | 4 | 12 | 32 | 80 | 192 | 448 | 1024 |
| | 2 | 12 | 48 | 160 | 480 | 1344 | 3584 |
| | | 3 | 24 | 120 | 480 | 1680 | 5376 |
| | | | 6 | 60 | 360 | 1680 | 6720 |
| | | | | 10 | 120 | 840 | 4480 |
| | | | | | 20 | 280 | 2240 |
| | | | | | | 35 | 560 |
| | | | | | | | 70 |
|