A280519 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 1 | | 1 |
| | | | | | | 10 | | 3 | | 1 |
| | | | | | 215 | | 41 | | 6 | | 1 |
| | | | | 12231 | | 1115 | | 105 | | 10 | | 1 |
| | | | 2025462 | | 74862 | | 3466 | | 215 | | 15 | | 1 |
| | | 1351857641 | | 14294210 | | 267281 | | 8372 | | 385 | | 21 | | 1 |
| | 6255560531733 | | 10837663111 | | 57646358 | | 727049 | | 17318 | | 630 | | 28 | | 1 |
|
A280519 as a square array
| 1 | 1 | 10 | 215 | 12231 | 2025462 | 1351857641 | 6255560531733
| | 1 | 3 | 41 | 1115 | 74862 | 14294210 | 10837663111
| | 1 | 6 | 105 | 3466 | 267281 | 57646358
| | 1 | 10 | 215 | 8372 | 727049
| | 1 | 15 | 385 | 17318
| | 1 | 21 | 630
| | 1 | 28
| | 1
|
A280519 as an upper right triangle
| 1 | 1 | 10 | 215 | 12231 | 2025462 | 1351857641 | 6255560531733
| | 1 | 3 | 41 | 1115 | 74862 | 14294210 | 10837663111
| | | 1 | 6 | 105 | 3466 | 267281 | 57646358
| | | | 1 | 10 | 215 | 8372 | 727049
| | | | | 1 | 15 | 385 | 17318
| | | | | | 1 | 21 | 630
| | | | | | | 1 | 28
| | | | | | | | 1
|
|
