A064191 formatted as a triangular array:
| | | | | | | | | | 1 | | | | | | | | | | |
| | | | | | | | | 1 | | 1 | | | | | | | | | |
| | | | | | | | 2 | | 1 | | 1 | | | | | | | | |
| | | | | | | 4 | | 2 | | 2 | | 1 | | | | | | | |
| | | | | | 9 | | 4 | | 5 | | 2 | | 1 | | | | | | |
| | | | | 21 | | 9 | | 12 | | 5 | | 3 | | 1 | | | | | |
| | | | 51 | | 21 | | 30 | | 12 | | 9 | | 3 | | 1 | | | | |
| | | 127 | | 51 | | 76 | | 30 | | 25 | | 9 | | 4 | | 1 | | | |
| | 323 | | 127 | | 196 | | 76 | | 69 | | 25 | | 14 | | 4 | | 1 | | |
| 835 | | 323 | | 512 | | 196 | | 189 | | 69 | | 44 | | 14 | | 5 | | 1 | |
| 2188 | | 835 | | 1353 | | 512 | | 518 | | 189 | | 133 | | 44 | | 20 | | 5 | | 1 |
A064191 formatted as a square array:
| 1 | 1 | 2 | 4 | 9 | 21 | 51 | 127 | 323 | 835 | 2188 |
| 1 | 1 | 2 | 4 | 9 | 21 | 51 | 127 | 323 | 835 | |
| 1 | 2 | 5 | 12 | 30 | 76 | 196 | 512 | 1353 | | |
| 1 | 2 | 5 | 12 | 30 | 76 | 196 | 512 | | | |
| 1 | 3 | 9 | 25 | 69 | 189 | 518 | | | | |
| 1 | 3 | 9 | 25 | 69 | 189 | | | | | |
| 1 | 4 | 14 | 44 | 133 | | | | | | |
| 1 | 4 | 14 | 44 | | | | | | | |
| 1 | 5 | 20 | | | | | | | | |
| 1 | 5 | | | | | | | | | |
| 1 | | | | | | | | | | |
A064191 formatted as an upper right triangle:
| 1 | 1 | 2 | 4 | 9 | 21 | 51 | 127 | 323 | 835 | 2188 |
| 1 | 1 | 2 | 4 | 9 | 21 | 51 | 127 | 323 | 835 |
| | 1 | 2 | 5 | 12 | 30 | 76 | 196 | 512 | 1353 |
| | | 1 | 2 | 5 | 12 | 30 | 76 | 196 | 512 |
| | | | 1 | 3 | 9 | 25 | 69 | 189 | 518 |
| | | | | 1 | 3 | 9 | 25 | 69 | 189 |
| | | | | | 1 | 4 | 14 | 44 | 133 |
| | | | | | | 1 | 4 | 14 | 44 |
| | | | | | | | 1 | 5 | 20 |
| | | | | | | | | 1 | 5 |
| | | | | | | | | | 1 |
|