A055801 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | | 1 | | 1 | | 1 |
| | | | | | | | | | | 1 | | 1 | | 1 | | 1 |
| | | | | | | | | | 1 | | 1 | | 1 | | 2 | | 1 |
| | | | | | | | | 1 | | 1 | | 1 | | 2 | | 2 | | 1 |
| | | | | | | | 1 | | 1 | | 1 | | 2 | | 3 | | 3 | | 1 |
| | | | | | | 1 | | 1 | | 1 | | 2 | | 3 | | 4 | | 3 | | 1 |
| | | | | | 1 | | 1 | | 1 | | 2 | | 3 | | 5 | | 6 | | 4 | | 1 |
| | | | | 1 | | 1 | | 1 | | 2 | | 3 | | 5 | | 7 | | 7 | | 4 | | 1 |
| | | | 1 | | 1 | | 1 | | 2 | | 3 | | 5 | | 8 | | 11 | | 10 | | 5 | | 1 |
| | | 1 | | 1 | | 1 | | 2 | | 3 | | 5 | | 8 | | 12 | | 14 | | 11 | | 5 | | 1 |
| | 1 | | 1 | | 1 | | 2 | | 3 | | 5 | | 8 | | 13 | | 19 | | 21 | | 15 | | 6 | | 1 |
|
A055801 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 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | 1 | 3 | 4 | 5 | 5 | 5 | 5 | 5
| | 1 | 3 | 6 | 7 | 8 | 8 | 8
| | 1 | 4 | 7 | 11 | 12 | 13
| | 1 | 4 | 10 | 14 | 19
| | 1 | 5 | 11 | 21
| | 1 | 5 | 15
| | 1 | 6
| | 1
|
A055801 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 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| | | | | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3
| | | | | | 1 | 3 | 4 | 5 | 5 | 5 | 5 | 5
| | | | | | | 1 | 3 | 6 | 7 | 8 | 8 | 8
| | | | | | | | 1 | 4 | 7 | 11 | 12 | 13
| | | | | | | | | 1 | 4 | 10 | 14 | 19
| | | | | | | | | | 1 | 5 | 11 | 21
| | | | | | | | | | | 1 | 5 | 15
| | | | | | | | | | | | 1 | 6
| | | | | | | | | | | | | 1
|
|
