A330509 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 3 |
| | | | | | | | | 1 | | 9 | | 6 |
| | | | | | | | 1 | | 19 | | 34 | | 10 |
| | | | | | | 1 | | 34 | | 115 | | 91 | | 15 |
| | | | | | 1 | | 55 | | 301 | | 445 | | 201 | | 21 |
| | | | | 1 | | 83 | | 672 | | 1582 | | 1338 | | 392 | | 28 |
| | | | 1 | | 119 | | 1344 | | 4600 | | 6174 | | 3410 | | 700 | | 36 |
| | | 1 | | 164 | | 2478 | | 11623 | | 22548 | | 19784 | | 7723 | | 1170 | | 45 |
| | 1 | | 219 | | 4290 | | 26452 | | 69834 | | 88428 | | 55009 | | 15999 | | 1857 | | 55 |
|
A330509 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 3 | 9 | 19 | 34 | 55 | 83 | 119 | 164 | 219
| 6 | 34 | 115 | 301 | 672 | 1344 | 2478 | 4290
| 10 | 91 | 445 | 1582 | 4600 | 11623 | 26452
| 15 | 201 | 1338 | 6174 | 22548 | 69834
| 21 | 392 | 3410 | 19784 | 88428
| 28 | 700 | 7723 | 55009
| 36 | 1170 | 15999
| 45 | 1857
| 55
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A330509 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 3 | 9 | 19 | 34 | 55 | 83 | 119 | 164 | 219
| | | 6 | 34 | 115 | 301 | 672 | 1344 | 2478 | 4290
| | | | 10 | 91 | 445 | 1582 | 4600 | 11623 | 26452
| | | | | 15 | 201 | 1338 | 6174 | 22548 | 69834
| | | | | | 21 | 392 | 3410 | 19784 | 88428
| | | | | | | 28 | 700 | 7723 | 55009
| | | | | | | | 36 | 1170 | 15999
| | | | | | | | | 45 | 1857
| | | | | | | | | | 55
|
|