A209569 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 2 | | 3 | | 1 |
| | | | | | | | | 3 | | 6 | | 5 | | 1 |
| | | | | | | | 4 | | 11 | | 14 | | 7 | | 1 |
| | | | | | | 5 | | 18 | | 31 | | 26 | | 9 | | 1 |
| | | | | | 6 | | 27 | | 60 | | 71 | | 42 | | 11 | | 1 |
| | | | | 7 | | 38 | | 105 | | 162 | | 139 | | 62 | | 13 | | 1 |
| | | | 8 | | 51 | | 170 | | 327 | | 372 | | 243 | | 86 | | 15 | | 1 |
| | | 9 | | 66 | | 259 | | 602 | | 861 | | 754 | | 391 | | 114 | | 17 | | 1 |
| | 10 | | 83 | | 376 | | 1031 | | 1790 | | 1987 | | 1388 | | 591 | | 146 | | 19 | | 1 |
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A209569 as a square array
| 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| | 1 | 3 | 6 | 11 | 18 | 27 | 38 | 51 | 66 | 83
| | 1 | 5 | 14 | 31 | 60 | 105 | 170 | 259 | 376
| | 1 | 7 | 26 | 71 | 162 | 327 | 602 | 1031
| | 1 | 9 | 42 | 139 | 372 | 861 | 1790
| | 1 | 11 | 62 | 243 | 754 | 1987
| | 1 | 13 | 86 | 391 | 1388
| | 1 | 15 | 114 | 591
| | 1 | 17 | 146
| | 1 | 19
| | 1
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A209569 as an upper right triangle
| 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| | 1 | 3 | 6 | 11 | 18 | 27 | 38 | 51 | 66 | 83
| | | 1 | 5 | 14 | 31 | 60 | 105 | 170 | 259 | 376
| | | | 1 | 7 | 26 | 71 | 162 | 327 | 602 | 1031
| | | | | 1 | 9 | 42 | 139 | 372 | 861 | 1790
| | | | | | 1 | 11 | 62 | 243 | 754 | 1987
| | | | | | | 1 | 13 | 86 | 391 | 1388
| | | | | | | | 1 | 15 | 114 | 591
| | | | | | | | | 1 | 17 | 146
| | | | | | | | | | 1 | 19
| | | | | | | | | | | 1
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