A227819 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 0 | | 1 |
| | | | | | | | | | | | 0 | | 0 | | 1 |
| | | | | | | | | | | 0 | | 0 | | 1 | | 1 |
| | | | | | | | | | 0 | | 0 | | 0 | | 2 | | 1 |
| | | | | | | | | 0 | | 0 | | 0 | | 2 | | 3 | | 1 |
| | | | | | | | 0 | | 0 | | 0 | | 2 | | 5 | | 4 | | 1 |
| | | | | | | 0 | | 0 | | 0 | | 2 | | 8 | | 9 | | 5 | | 1 |
| | | | | | 0 | | 0 | | 0 | | 1 | | 12 | | 18 | | 14 | | 6 | | 1 |
| | | | | 0 | | 0 | | 0 | | 1 | | 17 | | 34 | | 33 | | 20 | | 7 | | 1 |
| | | | 0 | | 0 | | 0 | | 1 | | 23 | | 61 | | 72 | | 54 | | 27 | | 8 | | 1 |
| | | 0 | | 0 | | 0 | | 0 | | 32 | | 108 | | 149 | | 132 | | 82 | | 35 | | 9 | | 1 |
| | 0 | | 0 | | 0 | | 0 | | 41 | | 187 | | 301 | | 303 | | 221 | | 118 | | 44 | | 10 | | 1 |
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A227819 as a square array
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0
| 1 | 3 | 5 | 8 | 12 | 17 | 23 | 32 | 41
| 1 | 4 | 9 | 18 | 34 | 61 | 108 | 187
| 1 | 5 | 14 | 33 | 72 | 149 | 301
| 1 | 6 | 20 | 54 | 132 | 303
| 1 | 7 | 27 | 82 | 221
| 1 | 8 | 35 | 118
| 1 | 9 | 44
| 1 | 10
| 1
|
A227819 as an upper right triangle
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | | | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0
| | | | | 1 | 3 | 5 | 8 | 12 | 17 | 23 | 32 | 41
| | | | | | 1 | 4 | 9 | 18 | 34 | 61 | 108 | 187
| | | | | | | 1 | 5 | 14 | 33 | 72 | 149 | 301
| | | | | | | | 1 | 6 | 20 | 54 | 132 | 303
| | | | | | | | | 1 | 7 | 27 | 82 | 221
| | | | | | | | | | 1 | 8 | 35 | 118
| | | | | | | | | | | 1 | 9 | 44
| | | | | | | | | | | | 1 | 10
| | | | | | | | | | | | | 1
|
|