A028313 formatted as a triangular array:
| | | | | | | | | | 1 | | | | | | | | | | |
| | | | | | | | | 1 | | 1 | | | | | | | | | |
| | | | | | | | 1 | | 5 | | 1 | | | | | | | | |
| | | | | | | 1 | | 6 | | 6 | | 1 | | | | | | | |
| | | | | | 1 | | 7 | | 12 | | 7 | | 1 | | | | | | |
| | | | | 1 | | 8 | | 19 | | 19 | | 8 | | 1 | | | | | |
| | | | 1 | | 9 | | 27 | | 38 | | 27 | | 9 | | 1 | | | | |
| | | 1 | | 10 | | 36 | | 65 | | 65 | | 36 | | 10 | | 1 | | | |
| | 1 | | 11 | | 46 | | 101 | | 130 | | 101 | | 46 | | 11 | | 1 | | |
| 1 | | 12 | | 57 | | 147 | | 231 | | 231 | | 147 | | 57 | | 12 | | 1 | |
| 1 | | 13 | | 69 | | 204 | | 378 | | 462 | | 378 | | 204 | | 69 | | 13 | | 1 |
A028313 formatted as a square array:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | |
| 1 | 6 | 12 | 19 | 27 | 36 | 46 | 57 | 69 | | |
| 1 | 7 | 19 | 38 | 65 | 101 | 147 | 204 | | | |
| 1 | 8 | 27 | 65 | 130 | 231 | 378 | | | | |
| 1 | 9 | 36 | 101 | 231 | 462 | | | | | |
| 1 | 10 | 46 | 147 | 378 | | | | | | |
| 1 | 11 | 57 | 204 | | | | | | | |
| 1 | 12 | 69 | | | | | | | | |
| 1 | 13 | | | | | | | | | |
| 1 | | | | | | | | | | |
A028313 formatted as an upper right triangle:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| | 1 | 6 | 12 | 19 | 27 | 36 | 46 | 57 | 69 |
| | | 1 | 7 | 19 | 38 | 65 | 101 | 147 | 204 |
| | | | 1 | 8 | 27 | 65 | 130 | 231 | 378 |
| | | | | 1 | 9 | 36 | 101 | 231 | 462 |
| | | | | | 1 | 10 | 46 | 147 | 378 |
| | | | | | | 1 | 11 | 57 | 204 |
| | | | | | | | 1 | 12 | 69 |
| | | | | | | | | 1 | 13 |
| | | | | | | | | | 1 |
|
