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| n | a(n) |
|---|---|
| 2 | 2 |
| 3 | 14 |
| 4 | 176 |
| 5 | 3644 |
| 6 | 117860 |
| 7 | 5755964 |
| 8 | 414823916 |
| 9 | 43390462724 |
| 10 | 6502296995300 |
| 11 | 1380924739533644 |
| 12 | 411744185101611356 |
| 13 | 170949139294419110804 |
| 14 | 98118349844314838731220 |
| 15 | 77360523694460582654188124 |
| 16 | 83319557470828626639253920716 |
| 17 | 121980734453060653381753104078884 |
| 18 | 241689591664023311258411470178766020 |
[2,14,176,3644,117860,5755964,414823916, 43390462724,6502296995300,1380924739533644, 411744185101611356,170949139294419110804, 98118349844314838731220, 77360523694460582654188124, 83319557470828626639253920716, 121980734453060653381753104078884, 241689591664023311258411470178766020] |