A074060 formatted as a triangular array:
| | | | | | | | | 1 | | | | | | | | | |
| | | | | | | | 1 | | 1 | | | | | | | | |
| | | | | | | 1 | | 5 | | 1 | | | | | | | |
| | | | | | 1 | | 16 | | 16 | | 1 | | | | | | |
| | | | | 1 | | 42 | | 127 | | 42 | | 1 | | | | | |
| | | | 1 | | 99 | | 715 | | 715 | | 99 | | 1 | | | | |
| | | 1 | | 219 | | 3292 | | 7723 | | 3292 | | 219 | | 1 | | | |
| | 1 | | 466 | | 13333 | | 63173 | | 63173 | | 13333 | | 466 | | 1 | | |
| 1 | | 968 | | 49556 | | 429594 | | 861235 | | 429594 | | 49556 | | 968 | | 1 | |
| 1 | | 1981 | | 173570 | | 2567940 | | 9300303 | | 9300303 | | 2567940 | | 173570 | | 1981 | | 1 |
A074060 formatted as a square array:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 5 | 16 | 42 | 99 | 219 | 466 | 968 | 1981 | |
| 1 | 16 | 127 | 715 | 3292 | 13333 | 49556 | 173570 | | |
| 1 | 42 | 715 | 7723 | 63173 | 429594 | 2567940 | | | |
| 1 | 99 | 3292 | 63173 | 861235 | 9300303 | | | | |
| 1 | 219 | 13333 | 429594 | 9300303 | | | | | |
| 1 | 466 | 49556 | 2567940 | | | | | | |
| 1 | 968 | 173570 | | | | | | | |
| 1 | 1981 | | | | | | | | |
| 1 | | | | | | | | | |
A074060 formatted as an upper right triangle:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 1 | 5 | 16 | 42 | 99 | 219 | 466 | 968 | 1981 |
| | 1 | 16 | 127 | 715 | 3292 | 13333 | 49556 | 173570 |
| | | 1 | 42 | 715 | 7723 | 63173 | 429594 | 2567940 |
| | | | 1 | 99 | 3292 | 63173 | 861235 | 9300303 |
| | | | | 1 | 219 | 13333 | 429594 | 9300303 |
| | | | | | 1 | 466 | 49556 | 2567940 |
| | | | | | | 1 | 968 | 173570 |
| | | | | | | | 1 | 1981 |
| | | | | | | | | 1 |
|
