A166301 as a triangular array
| | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | 0 | | 0 |
| | | | | | | | | | | | 0 | | 0 | | 1 |
| | | | | | | | | | | 0 | | 0 | | 0 | | 1 |
| | | | | | | | | | 0 | | 0 | | 0 | | 0 | | 2 |
| | | | | | | | | 0 | | 0 | | 0 | | 0 | | 1 | | 3 |
| | | | | | | | 0 | | 0 | | 0 | | 0 | | 1 | | 2 | | 5 |
| | | | | | | 0 | | 0 | | 0 | | 0 | | 1 | | 2 | | 6 | | 8 |
| | | | | | 0 | | 0 | | 0 | | 0 | | 1 | | 2 | | 8 | | 13 | | 13 |
| | | | | 0 | | 0 | | 0 | | 0 | | 1 | | 2 | | 10 | | 19 | | 29 | | 21 |
| | | | 0 | | 0 | | 0 | | 0 | | 1 | | 2 | | 12 | | 25 | | 51 | | 60 | | 34 |
| | | 0 | | 0 | | 0 | | 0 | | 1 | | 2 | | 14 | | 31 | | 78 | | 120 | | 122 | | 55 |
| | 0 | | 0 | | 0 | | 0 | | 1 | | 2 | | 16 | | 37 | | 110 | | 200 | | 282 | | 241 |
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A166301 as a square array
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| 5 | 6 | 8 | 10 | 12 | 14 | 16
| 8 | 13 | 19 | 25 | 31 | 37
| 13 | 29 | 51 | 78 | 110
| 21 | 60 | 120 | 200
| 34 | 122 | 282
| 55 | 241
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A166301 as an upper right triangle
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | | | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | | | | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | | | | | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2
| | | | | | | 5 | 6 | 8 | 10 | 12 | 14 | 16
| | | | | | | | 8 | 13 | 19 | 25 | 31 | 37
| | | | | | | | | 13 | 29 | 51 | 78 | 110
| | | | | | | | | | 21 | 60 | 120 | 200
| | | | | | | | | | | 34 | 122 | 282
| | | | | | | | | | | | 55 | 241
| | | | | | | | | | | |
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