A055215 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | | 1 | | 1 | | 1 |
| | | | | | | | | | | 1 | | 1 | | 2 | | 1 |
| | | | | | | | | | 1 | | 1 | | 2 | | 2 | | 1 |
| | | | | | | | | 1 | | 1 | | 2 | | 3 | | 2 | | 1 |
| | | | | | | | 1 | | 1 | | 2 | | 3 | | 4 | | 2 | | 1 |
| | | | | | | 1 | | 1 | | 2 | | 3 | | 5 | | 4 | | 2 | | 1 |
| | | | | | 1 | | 1 | | 2 | | 3 | | 5 | | 7 | | 4 | | 2 | | 1 |
| | | | | 1 | | 1 | | 2 | | 3 | | 5 | | 8 | | 8 | | 4 | | 2 | | 1 |
| | | | 1 | | 1 | | 2 | | 3 | | 5 | | 8 | | 12 | | 8 | | 4 | | 2 | | 1 |
| | | 1 | | 1 | | 2 | | 3 | | 5 | | 8 | | 13 | | 15 | | 8 | | 4 | | 2 | | 1 |
| | 1 | | 1 | | 2 | | 3 | | 5 | | 8 | | 13 | | 20 | | 16 |
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A055215 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 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| 1 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| 1 | 2 | 4 | 5 | 5 | 5 | 5 | 5 | 5
| 1 | 2 | 4 | 7 | 8 | 8 | 8 | 8
| 1 | 2 | 4 | 8 | 12 | 13 | 13
| 1 | 2 | 4 | 8 | 15 | 20
| 1 | 2 | 4 | 8 | 16
| 1 | 2 | 4
| 1 | 2
| 1
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A055215 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 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| | | | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | | | | 1 | 2 | 4 | 5 | 5 | 5 | 5 | 5 | 5
| | | | | | 1 | 2 | 4 | 7 | 8 | 8 | 8 | 8
| | | | | | | 1 | 2 | 4 | 8 | 12 | 13 | 13
| | | | | | | | 1 | 2 | 4 | 8 | 15 | 20
| | | | | | | | | 1 | 2 | 4 | 8 | 16
| | | | | | | | | | 1 | 2 | 4
| | | | | | | | | | | 1 | 2
| | | | | | | | | | | | 1
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