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| n | a(n) |
|---|---|
| 1 | 64 |
| 2 | 3525 |
| 3 | 146228 |
| 4 | 6865368 |
| 5 | 315717408 |
| 6 | 14511646624 |
| 7 | 668024193788 |
| 8 | 30738576483000 |
| 9 | 1414483814666200 |
| 10 | 65089911870493672 |
| 11 | 2995215513526282140 |
| 12 | 137829698528789894768 |
| 13 | 6342456224329497452288 |
| 14 | 291858373017140023742708 |
[64,3525,146228,6865368,315717408,14511646624, 668024193788,30738576483000,1414483814666200, 65089911870493672,2995215513526282140, 137829698528789894768,6342456224329497452288, 291858373017140023742708] |