A155586 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 1 | | 1 |
| | | | | | | | | | 1 | | 2 | | 1 | | 1 |
| | | | | | | | | 1 | | 5 | | 2 | | 1 | | 1 |
| | | | | | | | 1 | | 14 | | 5 | | 2 | | 1 | | 1 |
| | | | | | | 1 | | 42 | | 14 | | 5 | | 2 | | 1 | | 1 |
| | | | | | 1 | | 132 | | 42 | | 14 | | 5 | | 2 | | 1 | | 1 |
| | | | | 1 | | 429 | | 132 | | 42 | | 14 | | 5 | | 2 | | 1 | | 1 |
| | | | 1 | | 1430 | | 429 | | 132 | | 42 | | 14 | | 5 | | 2 | | 1 | | 1 |
| | | 1 | | 4862 | | 1430 | | 429 | | 132 | | 42 | | 14 | | 5 | | 2 | | 1 | | 1 |
| | 1 | | 16796 | | 4862 | | 1430 | | 429 | | 132 | | 42 | | 14 | | 5 | | 2 | | 1 | | 1 |
|
A155586 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430 | 4862 | 16796
| | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430 | 4862
| | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430
| | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429
| | 1 | 1 | 2 | 5 | 14 | 42 | 132
| | 1 | 1 | 2 | 5 | 14 | 42
| | 1 | 1 | 2 | 5 | 14
| | 1 | 1 | 2 | 5
| | 1 | 1 | 2
| | 1 | 1
| | 1
|
A155586 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430 | 4862 | 16796
| | | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430 | 4862
| | | | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429 | 1430
| | | | | 1 | 1 | 2 | 5 | 14 | 42 | 132 | 429
| | | | | | 1 | 1 | 2 | 5 | 14 | 42 | 132
| | | | | | | 1 | 1 | 2 | 5 | 14 | 42
| | | | | | | | 1 | 1 | 2 | 5 | 14
| | | | | | | | | 1 | 1 | 2 | 5
| | | | | | | | | | 1 | 1 | 2
| | | | | | | | | | | 1 | 1
| | | | | | | | | | | | 1
|
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