A060540 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 3 | | 1 |
| | | | | | | 1 | | 10 | | 15 | | 1 |
| | | | | | 1 | | 35 | | 280 | | 105 | | 1 |
| | | | | 1 | | 126 | | 5775 | | 15400 | | 945 | | 1 |
| | | | 1 | | 462 | | 126126 | | 2627625 | | 1401400 | | 10395 | | 1 |
| | | 1 | | 1716 | | 2858856 | | 488864376 | | 2546168625 | | 190590400 | | 135135 | | 1 |
| | 1 | | 6435 | | 66512160 | | 96197645544 | | 5194672859376 | | 4509264634875 | | 36212176000 | | 2027025 | | 1 |
|
A060540 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 10 | 35 | 126 | 462 | 1716 | 6435
| | 1 | 15 | 280 | 5775 | 126126 | 2858856 | 66512160
| | 1 | 105 | 15400 | 2627625 | 488864376 | 96197645544
| | 1 | 945 | 1401400 | 2546168625 | 5194672859376
| | 1 | 10395 | 190590400 | 4509264634875
| | 1 | 135135 | 36212176000
| | 1 | 2027025
| | 1
|
A060540 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 10 | 35 | 126 | 462 | 1716 | 6435
| | | 1 | 15 | 280 | 5775 | 126126 | 2858856 | 66512160
| | | | 1 | 105 | 15400 | 2627625 | 488864376 | 96197645544
| | | | | 1 | 945 | 1401400 | 2546168625 | 5194672859376
| | | | | | 1 | 10395 | 190590400 | 4509264634875
| | | | | | | 1 | 135135 | 36212176000
| | | | | | | | 1 | 2027025
| | | | | | | | | 1
|
|
