A101646 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 2 | | 2 |
| | | | | | | | | | | 3 | | 3 | | 3 |
| | | | | | | | | | 4 | | 5 | | 5 | | 4 |
| | | | | | | | | 5 | | 7 | | 8 | | 7 | | 5 |
| | | | | | | | 6 | | 8 | | 11 | | 11 | | 8 | | 6 |
| | | | | | | 7 | | 10 | | 13 | | 15 | | 13 | | 10 | | 7 |
| | | | | | 8 | | 11 | | 16 | | 18 | | 18 | | 16 | | 11 | | 8 |
| | | | | 9 | | 13 | | 18 | | 22 | | 21 | | 22 | | 18 | | 13 | | 9 |
| | | | 10 | | 15 | | 21 | | 25 | | 26 | | 26 | | 25 | | 21 | | 15 | | 10 |
| | | 11 | | 16 | | 24 | | 29 | | 29 | | 32 | | 29 | | 29 | | 24 | | 16 | | 11 |
| | 12 | | 18 | | 26 | | 33 | | 34 | | 36 | | 36 | | 34 | | 33 | | 26 | | 18 | | 12 |
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A101646 as a square array
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| 2 | 3 | 5 | 7 | 8 | 10 | 11 | 13 | 15 | 16 | 18
| 3 | 5 | 8 | 11 | 13 | 16 | 18 | 21 | 24 | 26
| 4 | 7 | 11 | 15 | 18 | 22 | 25 | 29 | 33
| 5 | 8 | 13 | 18 | 21 | 26 | 29 | 34
| 6 | 10 | 16 | 22 | 26 | 32 | 36
| 7 | 11 | 18 | 25 | 29 | 36
| 8 | 13 | 21 | 29 | 34
| 9 | 15 | 24 | 33
| 10 | 16 | 26
| 11 | 18
| 12
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A101646 as an upper right triangle
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12
| | 2 | 3 | 5 | 7 | 8 | 10 | 11 | 13 | 15 | 16 | 18
| | | 3 | 5 | 8 | 11 | 13 | 16 | 18 | 21 | 24 | 26
| | | | 4 | 7 | 11 | 15 | 18 | 22 | 25 | 29 | 33
| | | | | 5 | 8 | 13 | 18 | 21 | 26 | 29 | 34
| | | | | | 6 | 10 | 16 | 22 | 26 | 32 | 36
| | | | | | | 7 | 11 | 18 | 25 | 29 | 36
| | | | | | | | 8 | 13 | 21 | 29 | 34
| | | | | | | | | 9 | 15 | 24 | 33
| | | | | | | | | | 10 | 16 | 26
| | | | | | | | | | | 11 | 18
| | | | | | | | | | | | 12
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