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| n | a(n) |
|---|---|
| 12 | 1 |
| 13 | 91 |
| 14 | 4753 |
| 15 | 187460 |
| 16 | 6210820 |
| 17 | 182637273 |
| 18 | 4925156775 |
| 19 | 124397910208 |
| 20 | 2985733783935 |
| 21 | 68805631064170 |
| 22 | 1534076755992935 |
| 23 | 33283806441690896 |
| 24 | 705873715441872264 |
| 25 | 14684612966748995725 |
| 26 | 300515354528763817950 |
[1,91,4753,187460,6210820,182637273,4925156775, 124397910208,2985733783935,68805631064170, 1534076755992935,33283806441690896, 705873715441872264,14684612966748995725, 300515354528763817950] |