A245558 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 1 | | 1 |
| | | | | | | | | | 1 | | 2 | | 2 | | 1 |
| | | | | | | | | 1 | | 2 | | 3 | | 2 | | 1 |
| | | | | | | | 1 | | 3 | | 5 | | 5 | | 3 | | 1 |
| | | | | | | 1 | | 3 | | 7 | | 8 | | 7 | | 3 | | 1 |
| | | | | | 1 | | 4 | | 9 | | 14 | | 14 | | 9 | | 4 | | 1 |
| | | | | 1 | | 4 | | 12 | | 20 | | 25 | | 20 | | 12 | | 4 | | 1 |
| | | | 1 | | 5 | | 15 | | 30 | | 42 | | 42 | | 30 | | 15 | | 5 | | 1 |
| | | 1 | | 5 | | 18 | | 40 | | 66 | | 75 | | 66 | | 40 | | 18 | | 5 | | 1 |
| | 1 | | 6 | | 22 | | 55 | | 99 | | 132 | | 132 | | 99 | | 55 | | 22 | | 6 | | 1 |
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A245558 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6
| 1 | 2 | 3 | 5 | 7 | 9 | 12 | 15 | 18 | 22
| 1 | 2 | 5 | 8 | 14 | 20 | 30 | 40 | 55
| 1 | 3 | 7 | 14 | 25 | 42 | 66 | 99
| 1 | 3 | 9 | 20 | 42 | 75 | 132
| 1 | 4 | 12 | 30 | 66 | 132
| 1 | 4 | 15 | 40 | 99
| 1 | 5 | 18 | 55
| 1 | 5 | 22
| 1 | 6
| 1
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A245558 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 5 | 6
| | | 1 | 2 | 3 | 5 | 7 | 9 | 12 | 15 | 18 | 22
| | | | 1 | 2 | 5 | 8 | 14 | 20 | 30 | 40 | 55
| | | | | 1 | 3 | 7 | 14 | 25 | 42 | 66 | 99
| | | | | | 1 | 3 | 9 | 20 | 42 | 75 | 132
| | | | | | | 1 | 4 | 12 | 30 | 66 | 132
| | | | | | | | 1 | 4 | 15 | 40 | 99
| | | | | | | | | 1 | 5 | 18 | 55
| | | | | | | | | | 1 | 5 | 22
| | | | | | | | | | | 1 | 6
| | | | | | | | | | | | 1
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