A098568 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | 1 | | 6 | | 6 | | 1 |
| | | | | | | | 1 | | 10 | | 21 | | 10 | | 1 |
| | | | | | | 1 | | 15 | | 56 | | 55 | | 15 | | 1 |
| | | | | | 1 | | 21 | | 126 | | 220 | | 120 | | 21 | | 1 |
| | | | | 1 | | 28 | | 252 | | 715 | | 680 | | 231 | | 28 | | 1 |
| | | | 1 | | 36 | | 462 | | 2002 | | 3060 | | 1771 | | 406 | | 36 | | 1 |
| | | 1 | | 45 | | 792 | | 5005 | | 11628 | | 10626 | | 4060 | | 666 | | 45 | | 1 |
| | 1 | | 55 | | 1287 | | 11440 | | 38760 | | 53130 | | 31465 | | 8436 |
|
A098568 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55
| | 1 | 6 | 21 | 56 | 126 | 252 | 462 | 792 | 1287
| | 1 | 10 | 55 | 220 | 715 | 2002 | 5005 | 11440
| | 1 | 15 | 120 | 680 | 3060 | 11628 | 38760
| | 1 | 21 | 231 | 1771 | 10626 | 53130
| | 1 | 28 | 406 | 4060 | 31465
| | 1 | 36 | 666 | 8436
| | 1 | 45
| | 1
|
A098568 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 6 | 10 | 15 | 21 | 28 | 36 | 45 | 55
| | | 1 | 6 | 21 | 56 | 126 | 252 | 462 | 792 | 1287
| | | | 1 | 10 | 55 | 220 | 715 | 2002 | 5005 | 11440
| | | | | 1 | 15 | 120 | 680 | 3060 | 11628 | 38760
| | | | | | 1 | 21 | 231 | 1771 | 10626 | 53130
| | | | | | | 1 | 28 | 406 | 4060 | 31465
| | | | | | | | 1 | 36 | 666 | 8436
| | | | | | | | | 1 | 45
| | | | | | | | | | 1
| | | | | | | | | |
|
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