A127893 formatted as a triangular array:
| | | | | | | | 1 | | | | | | | | |
| | | | | | | 3 | | 1 | | | | | | | |
| | | | | | 6 | | 6 | | 1 | | | | | | |
| | | | | 10 | | 21 | | 9 | | 1 | | | | | |
| | | | 15 | | 56 | | 45 | | 12 | | 1 | | | | |
| | | 21 | | 126 | | 165 | | 78 | | 15 | | 1 | | | |
| | 28 | | 252 | | 495 | | 364 | | 120 | | 18 | | 1 | | |
| 36 | | 462 | | 1287 | | 1365 | | 680 | | 171 | | 21 | | 1 | |
| 45 | | 792 | | 3003 | | 4368 | | 3060 | | 1140 | | 231 | | 24 | | 1 |
A127893 formatted as a square array:
| 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 |
| 1 | 6 | 21 | 56 | 126 | 252 | 462 | 792 | |
| 1 | 9 | 45 | 165 | 495 | 1287 | 3003 | | |
| 1 | 12 | 78 | 364 | 1365 | 4368 | | | |
| 1 | 15 | 120 | 680 | 3060 | | | | |
| 1 | 18 | 171 | 1140 | | | | | |
| 1 | 21 | 231 | | | | | | |
| 1 | 24 | | | | | | | |
| 1 | | | | | | | | |
A127893 formatted as an upper right triangle:
| 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 |
| 1 | 6 | 21 | 56 | 126 | 252 | 462 | 792 |
| | 1 | 9 | 45 | 165 | 495 | 1287 | 3003 |
| | | 1 | 12 | 78 | 364 | 1365 | 4368 |
| | | | 1 | 15 | 120 | 680 | 3060 |
| | | | | 1 | 18 | 171 | 1140 |
| | | | | | 1 | 21 | 231 |
| | | | | | | 1 | 24 |
| | | | | | | | 1 |
|
