A168216 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | 1 | | 8 | | 5 | | 1 |
| | | | | | | 1 | | 23 | | 19 | | 7 | | 1 |
| | | | | | 1 | | 74 | | 69 | | 34 | | 9 | | 1 |
| | | | | 1 | | 262 | | 256 | | 147 | | 53 | | 11 | | 1 |
| | | | 1 | | 993 | | 986 | | 615 | | 265 | | 76 | | 13 | | 1 |
| | | 1 | | 3943 | | 3935 | | 2571 | | 1235 | | 431 | | 103 | | 15 | | 1 |
| | 1 | | 16178 | | 16169 | | 10862 | | 5591 | | 2216 | | 653 | | 134 | | 17 | | 1 |
|
A168216 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 8 | 23 | 74 | 262 | 993 | 3943 | 16178
| | 1 | 5 | 19 | 69 | 256 | 986 | 3935 | 16169
| | 1 | 7 | 34 | 147 | 615 | 2571 | 10862
| | 1 | 9 | 53 | 265 | 1235 | 5591
| | 1 | 11 | 76 | 431 | 2216
| | 1 | 13 | 103 | 653
| | 1 | 15 | 134
| | 1 | 17
| | 1
|
A168216 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 8 | 23 | 74 | 262 | 993 | 3943 | 16178
| | | 1 | 5 | 19 | 69 | 256 | 986 | 3935 | 16169
| | | | 1 | 7 | 34 | 147 | 615 | 2571 | 10862
| | | | | 1 | 9 | 53 | 265 | 1235 | 5591
| | | | | | 1 | 11 | 76 | 431 | 2216
| | | | | | | 1 | 13 | 103 | 653
| | | | | | | | 1 | 15 | 134
| | | | | | | | | 1 | 17
| | | | | | | | | | 1
|
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