A171398 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | | 1 | | 1 | | 1 |
| | | | | | | | | | | 1 | | 1 | | 1 | | 1 |
| | | | | | | | | | 1 | | 1 | | 2 | | 1 | | 1 |
| | | | | | | | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 |
| | | | | | | | 1 | | 1 | | 3 | | 3 | | 3 | | 1 | | 1 |
| | | | | | | 1 | | 1 | | 1 | | 2 | | 2 | | 1 | | 1 | | 1 |
| | | | | | 1 | | 1 | | 3 | | 4 | | 6 | | 4 | | 3 | | 1 | | 1 |
| | | | | 1 | | 1 | | 2 | | 3 | | 4 | | 4 | | 3 | | 2 | | 1 | | 1 |
| | | | 1 | | 1 | | 3 | | 4 | | 9 | | 9 | | 9 | | 4 | | 3 | | 1 | | 1 |
| | | 1 | | 1 | | 1 | | 2 | | 4 | | 6 | | 6 | | 4 | | 2 | | 1 | | 1 | | 1 |
| | 1 | | 1 | | 5 | | 9 | | 21 | | 25 | | 34 | | 25 | | 21 | | 9 | | 5 | | 1 | | 1 |
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A171398 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 2 | 1 | 3 | 1 | 3 | 2 | 3 | 1 | 5
| | 1 | 1 | 1 | 3 | 2 | 4 | 3 | 4 | 2 | 9
| | 1 | 1 | 3 | 2 | 6 | 4 | 9 | 4 | 21
| | 1 | 1 | 1 | 4 | 4 | 9 | 6 | 25
| | 1 | 1 | 3 | 3 | 9 | 6 | 34
| | 1 | 1 | 2 | 4 | 4 | 25
| | 1 | 1 | 3 | 2 | 21
| | 1 | 1 | 1 | 9
| | 1 | 1 | 5
| | 1 | 1
| | 1
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A171398 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | 1 | 1 | 2 | 1 | 3 | 1 | 3 | 2 | 3 | 1 | 5
| | | | 1 | 1 | 1 | 3 | 2 | 4 | 3 | 4 | 2 | 9
| | | | | 1 | 1 | 3 | 2 | 6 | 4 | 9 | 4 | 21
| | | | | | 1 | 1 | 1 | 4 | 4 | 9 | 6 | 25
| | | | | | | 1 | 1 | 3 | 3 | 9 | 6 | 34
| | | | | | | | 1 | 1 | 2 | 4 | 4 | 25
| | | | | | | | | 1 | 1 | 3 | 2 | 21
| | | | | | | | | | 1 | 1 | 1 | 9
| | | | | | | | | | | 1 | 1 | 5
| | | | | | | | | | | | 1 | 1
| | | | | | | | | | | | | 1
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