A130556 as a triangular array
| | | | | | | | 1 |
| | | | | | | | 11 | | 1 |
| | | | | | | 111 | | 1 | | 11 |
| | | | | | 1111 | | 11 | | 1 | | 111 |
| | | | | 11111 | | 111 | | 1 | | 11 | | 1111 |
| | | | 111111 | | 1111 | | 11 | | 1 | | 111 | | 11111 |
| | | 1111111 | | 11111 | | 111 | | 1 | | 11 | | 1111 | | 111111 |
| | 11111111 | | 111111 | | 1111 | | 11 | | 1 | | 111 | | 11111 | | 1111111 |
|
A130556 as a square array
1 | 11 | 111 | 1111 | 11111 | 111111 | 1111111 | 11111111
| 1 | 1 | 11 | 111 | 1111 | 11111 | 111111
| 11 | 1 | 1 | 11 | 111 | 1111
| 111 | 11 | 1 | 1 | 11
| 1111 | 111 | 11 | 1
| 11111 | 1111 | 111
| 111111 | 11111
| 1111111
|
A130556 as an upper right triangle
1 | 11 | 111 | 1111 | 11111 | 111111 | 1111111 | 11111111
| | 1 | 1 | 11 | 111 | 1111 | 11111 | 111111
| | | 11 | 1 | 1 | 11 | 111 | 1111
| | | | 111 | 11 | 1 | 1 | 11
| | | | | 1111 | 111 | 11 | 1
| | | | | | 11111 | 1111 | 111
| | | | | | | 111111 | 11111
| | | | | | | | 1111111
|
|