A131338 formatted as a triangular array:
| | | | | | | | | | | 1 | | | | | | | | | | | |
| | | | | | | | | | 1 | | 1 | | | | | | | | | | |
| | | | | | | | | 1 | | 1 | | 1 | | | | | | | | | |
| | | | | | | | 2 | | 1 | | 1 | | 1 | | | | | | | | |
| | | | | | | 1 | | 2 | | 3 | | 5 | | 1 | | | | | | | |
| | | | | | 1 | | 1 | | 1 | | 1 | | 2 | | 3 | | | | | | |
| | | | | 4 | | 6 | | 9 | | 14 | | 1 | | 1 | | 1 | | | | | |
| | | | 1 | | 1 | | 1 | | 2 | | 3 | | 4 | | 5 | | 7 | | | | |
| | | 10 | | 14 | | 20 | | 29 | | 43 | | 1 | | 1 | | 1 | | 1 | | | |
| | 1 | | 1 | | 1 | | 2 | | 3 | | 4 | | 5 | | 6 | | 8 | | 11 | | |
| 15 | | 20 | | 27 | | 37 | | 51 | | 71 | | 100 | | 143 | | 1 | | 1 | | 1 | |
| 1 | | 1 | | 1 | | 1 | | 1 | | 2 | | 3 | | 4 | | 5 | | 6 | | 7 | | 9 |
A131338 formatted as a square array:
| 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 10 | 1 | 15 | 1 |
| 1 | 1 | 1 | 2 | 1 | 6 | 1 | 14 | 1 | 20 | 1 | |
| 1 | 1 | 3 | 1 | 9 | 1 | 20 | 1 | 27 | 1 | | |
| 1 | 5 | 1 | 14 | 2 | 29 | 2 | 37 | 1 | | | |
| 1 | 2 | 1 | 3 | 43 | 3 | 51 | 1 | | | | |
| 3 | 1 | 4 | 1 | 4 | 71 | 2 | | | | | |
| 1 | 5 | 1 | 5 | 100 | 3 | | | | | | |
| 7 | 1 | 6 | 143 | 4 | | | | | | | |
| 1 | 8 | 1 | 5 | | | | | | | | |
| 11 | 1 | 6 | | | | | | | | | |
| 1 | 7 | | | | | | | | | | |
| 9 | | | | | | | | | | | |
A131338 formatted as an upper right triangle:
| 1 | 1 | 1 | 2 | 1 | 1 | 4 | 1 | 10 | 1 | 15 | 1 |
| 1 | 1 | 1 | 2 | 1 | 6 | 1 | 14 | 1 | 20 | 1 |
| | 1 | 1 | 3 | 1 | 9 | 1 | 20 | 1 | 27 | 1 |
| | | 1 | 5 | 1 | 14 | 2 | 29 | 2 | 37 | 1 |
| | | | 1 | 2 | 1 | 3 | 43 | 3 | 51 | 1 |
| | | | | 3 | 1 | 4 | 1 | 4 | 71 | 2 |
| | | | | | 1 | 5 | 1 | 5 | 100 | 3 |
| | | | | | | 7 | 1 | 6 | 143 | 4 |
| | | | | | | | 1 | 8 | 1 | 5 |
| | | | | | | | | 11 | 1 | 6 |
| | | | | | | | | | 1 | 7 |
| | | | | | | | | | | 9 |
|
