A030237 formatted as a triangular array:
| | | | | | | 1 | | | | | | | |
| | | | | | 1 | | 2 | | | | | | |
| | | | | 1 | | 3 | | 5 | | | | | |
| | | | 1 | | 4 | | 9 | | 14 | | | | |
| | | 1 | | 5 | | 14 | | 28 | | 42 | | | |
| | 1 | | 6 | | 20 | | 48 | | 90 | | 132 | | |
| 1 | | 7 | | 27 | | 75 | | 165 | | 297 | | 429 | |
| 8 | | 35 | | 110 | | 275 | | 572 | | 1001 | | 1430 | | 1 |
A030237 formatted as a square array:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
| 2 | 3 | 4 | 5 | 6 | 7 | 35 | |
| 5 | 9 | 14 | 20 | 27 | 110 | | |
| 14 | 28 | 48 | 75 | 275 | | | |
| 42 | 90 | 165 | 572 | | | | |
| 132 | 297 | 1001 | | | | | |
| 429 | 1430 | | | | | | |
| 1 | | | | | | | |
A030237 formatted as an upper right triangle:
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 8 |
| 2 | 3 | 4 | 5 | 6 | 7 | 35 |
| | 5 | 9 | 14 | 20 | 27 | 110 |
| | | 14 | 28 | 48 | 75 | 275 |
| | | | 42 | 90 | 165 | 572 |
| | | | | 132 | 297 | 1001 |
| | | | | | 429 | 1430 |
| | | | | | | 1 |
|
