A054521 as a triangular array
| | | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | | 1 | | 0 |
| | | | | | | | | | | | | 1 | | 1 | | 0 |
| | | | | | | | | | | | 1 | | 0 | | 1 | | 0 |
| | | | | | | | | | | 1 | | 1 | | 1 | | 1 | | 0 |
| | | | | | | | | | 1 | | 0 | | 0 | | 0 | | 1 | | 0 |
| | | | | | | | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 0 |
| | | | | | | | 1 | | 0 | | 1 | | 0 | | 1 | | 0 | | 1 | | 0 |
| | | | | | | 1 | | 1 | | 0 | | 1 | | 1 | | 0 | | 1 | | 1 | | 0 |
| | | | | | 1 | | 0 | | 1 | | 0 | | 0 | | 0 | | 1 | | 0 | | 1 | | 0 |
| | | | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 0 |
| | | | 1 | | 0 | | 0 | | 0 | | 1 | | 0 | | 1 | | 0 | | 0 | | 0 | | 1 | | 0 |
| | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 1 | | 0 |
| | 1 | | 0 |
|
A054521 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0
| | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1
| | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1
| | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1
| | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1
| | 0 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 1 | 0 | 1 | 0 | 1
| | 0 | 1 | 1 | 0 | 1
| | 0 | 1 | 0 | 1
| | 0 | 1 | 1
| | 0 | 1
| | 0
|
A054521 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0
| | | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 1
| | | | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1
| | | | | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1
| | | | | | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1
| | | | | | | 0 | 1 | 1 | 1 | 1 | 1 | 1
| | | | | | | | 0 | 1 | 0 | 1 | 0 | 1
| | | | | | | | | 0 | 1 | 1 | 0 | 1
| | | | | | | | | | 0 | 1 | 0 | 1
| | | | | | | | | | | 0 | 1 | 1
| | | | | | | | | | | | 0 | 1
| | | | | | | | | | | | | 0
| | | | | | | | | | | | |
|
|
