A309559 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 2 | | 2 |
| | | | | | | | | | | | 3 | | 4 | | 4 |
| | | | | | | | | | | 4 | | 6 | | 7 | | 7 |
| | | | | | | | | | 5 | | 8 | | 10 | | 11 | | 11 |
| | | | | | | | | 6 | | 10 | | 13 | | 15 | | 16 | | 16 |
| | | | | | | | 7 | | 12 | | 16 | | 19 | | 21 | | 22 | | 22 |
| | | | | | | 8 | | 14 | | 19 | | 23 | | 26 | | 28 | | 29 | | 29 |
| | | | | | 9 | | 16 | | 22 | | 27 | | 31 | | 34 | | 36 | | 37 | | 37 |
| | | | | 10 | | 18 | | 25 | | 31 | | 36 | | 40 | | 43 | | 45 | | 46 | | 46 |
| | | | 11 | | 20 | | 28 | | 35 | | 41 | | 46 | | 50 | | 53 | | 55 | | 56 | | 56 |
| | | 12 | | 22 | | 31 | | 39 | | 46 | | 52 | | 57 | | 61 | | 64 | | 66 | | 67 | | 67 |
| | 13 | | 24 | | 34 | | 43 | | 51 | | 58 | | 64 | | 69 | | 73 | | 76 | | 78 | | 79 | | 79 |
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A309559 as a square array
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13
| 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24
| 4 | 7 | 10 | 13 | 16 | 19 | 22 | 25 | 28 | 31 | 34
| 7 | 11 | 15 | 19 | 23 | 27 | 31 | 35 | 39 | 43
| 11 | 16 | 21 | 26 | 31 | 36 | 41 | 46 | 51
| 16 | 22 | 28 | 34 | 40 | 46 | 52 | 58
| 22 | 29 | 36 | 43 | 50 | 57 | 64
| 29 | 37 | 45 | 53 | 61 | 69
| 37 | 46 | 55 | 64 | 73
| 46 | 56 | 66 | 76
| 56 | 67 | 78
| 67 | 79
| 79
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A309559 as an upper right triangle
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13
| | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24
| | | 4 | 7 | 10 | 13 | 16 | 19 | 22 | 25 | 28 | 31 | 34
| | | | 7 | 11 | 15 | 19 | 23 | 27 | 31 | 35 | 39 | 43
| | | | | 11 | 16 | 21 | 26 | 31 | 36 | 41 | 46 | 51
| | | | | | 16 | 22 | 28 | 34 | 40 | 46 | 52 | 58
| | | | | | | 22 | 29 | 36 | 43 | 50 | 57 | 64
| | | | | | | | 29 | 37 | 45 | 53 | 61 | 69
| | | | | | | | | 37 | 46 | 55 | 64 | 73
| | | | | | | | | | 46 | 56 | 66 | 76
| | | | | | | | | | | 56 | 67 | 78
| | | | | | | | | | | | 67 | 79
| | | | | | | | | | | | | 79
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