A172279 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | | | 1 | | 3 | | 2 | | 1 |
| | | | | | | | | | 1 | | 2 | | 6 | | 2 | | 1 |
| | | | | | | | | 1 | | 3 | | 10 | | 5 | | 1 | | 1 |
| | | | | | | | 1 | | 2 | | 8 | | 20 | | 8 | | 2 | | 1 |
| | | | | | | 1 | | 2 | | 11 | | 35 | | 18 | | 5 | | 1 | | 1 |
| | | | | | 1 | | 1 | | 6 | | 28 | | 70 | | 28 | | 6 | | 1 | | 1 |
| | | | | 1 | | 1 | | 8 | | 42 | | 126 | | 63 | | 17 | | 4 | | 1 | | 1 |
| | | | 1 | | 1 | | 5 | | 24 | | 105 | | 252 | | 105 | | 24 | | 5 | | 1 | | 1 |
| | | 1 | | 1 | | 6 | | 33 | | 165 | | 462 | | 231 | | 66 | | 17 | | 4 | | 1 | | 1 |
| | 1 | | 1 | | 4 | | 22 | | 99 | | 396 | | 924 | | 396 | | 99 | | 22 | | 4 | | 1 | | 1 |
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A172279 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 2 | 3 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1
| 1 | 2 | 6 | 10 | 8 | 11 | 6 | 8 | 5 | 6 | 4
| 1 | 2 | 5 | 20 | 35 | 28 | 42 | 24 | 33 | 22
| 1 | 1 | 8 | 18 | 70 | 126 | 105 | 165 | 99
| 1 | 2 | 5 | 28 | 63 | 252 | 462 | 396
| 1 | 1 | 6 | 17 | 105 | 231 | 924
| 1 | 1 | 4 | 24 | 66 | 396
| 1 | 1 | 5 | 17 | 99
| 1 | 1 | 4 | 22
| 1 | 1 | 4
| 1 | 1
| 1
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A172279 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1
| | | 1 | 2 | 6 | 10 | 8 | 11 | 6 | 8 | 5 | 6 | 4
| | | | 1 | 2 | 5 | 20 | 35 | 28 | 42 | 24 | 33 | 22
| | | | | 1 | 1 | 8 | 18 | 70 | 126 | 105 | 165 | 99
| | | | | | 1 | 2 | 5 | 28 | 63 | 252 | 462 | 396
| | | | | | | 1 | 1 | 6 | 17 | 105 | 231 | 924
| | | | | | | | 1 | 1 | 4 | 24 | 66 | 396
| | | | | | | | | 1 | 1 | 5 | 17 | 99
| | | | | | | | | | 1 | 1 | 4 | 22
| | | | | | | | | | | 1 | 1 | 4
| | | | | | | | | | | | 1 | 1
| | | | | | | | | | | | | 1
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