A306309 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | | 1 | | 3 | | 3 | | 1 |
| | | | | | | | | 1 | | 4 | | 6 | | 4 | | 1 |
| | | | | | | | 1 | | 5 | | 1 | | 1 | | 5 | | 1 |
| | | | | | | 1 | | 6 | | 6 | | 2 | | 6 | | 6 | | 1 |
| | | | | | 1 | | 7 | | 12 | | 8 | | 8 | | 12 | | 7 | | 1 |
| | | | | 1 | | 8 | | 19 | | 2 | | 16 | | 2 | | 19 | | 8 | | 1 |
| | | | 1 | | 9 | | 27 | | 21 | | 18 | | 18 | | 21 | | 27 | | 9 | | 1 |
| | | 1 | | 1 | | 36 | | 48 | | 39 | | 36 | | 39 | | 48 | | 36 | | 1 | | 1 |
| | 1 | | 2 | | 37 | | 84 | | 87 | | 75 | | 75 | | 87 | | 84 | | 37 | | 2 | | 1 |
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A306309 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 1 | 2
| 1 | 3 | 6 | 1 | 6 | 12 | 19 | 27 | 36 | 37
| 1 | 4 | 1 | 2 | 8 | 2 | 21 | 48 | 84
| 1 | 5 | 6 | 8 | 16 | 18 | 39 | 87
| 1 | 6 | 12 | 2 | 18 | 36 | 75
| 1 | 7 | 19 | 21 | 39 | 75
| 1 | 8 | 27 | 48 | 87
| 1 | 9 | 36 | 84
| 1 | 1 | 37
| 1 | 2
| 1
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A306309 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 1 | 2
| | | 1 | 3 | 6 | 1 | 6 | 12 | 19 | 27 | 36 | 37
| | | | 1 | 4 | 1 | 2 | 8 | 2 | 21 | 48 | 84
| | | | | 1 | 5 | 6 | 8 | 16 | 18 | 39 | 87
| | | | | | 1 | 6 | 12 | 2 | 18 | 36 | 75
| | | | | | | 1 | 7 | 19 | 21 | 39 | 75
| | | | | | | | 1 | 8 | 27 | 48 | 87
| | | | | | | | | 1 | 9 | 36 | 84
| | | | | | | | | | 1 | 1 | 37
| | | | | | | | | | | 1 | 2
| | | | | | | | | | | | 1
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