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| n | a(n) |
|---|---|
| 6 | 463 |
| 7 | 1429 |
| 8 | 5204 |
| 9 | 21485 |
| 10 | 98367 |
| 11 | 492112 |
| 12 | 2661473 |
| 13 | 15433189 |
| 14 | 95330022 |
| 15 | 623920659 |
| 16 | 4307488855 |
| 17 | 31251896082 |
| 18 | 237507413011 |
| 19 | 1885386460081 |
| 20 | 15594381406204 |
| 21 | 134098780567817 |
| 22 | 1196511239506523 |
| 23 | 11057997444651072 |
| 24 | 105684135069638365 |
| 25 | 1043003293054453121 |
[463,1429,5204,21485,98367,492112,2661473, 15433189,95330022,623920659,4307488855, 31251896082,237507413011,1885386460081, 15594381406204,134098780567817,1196511239506523, 11057997444651072,105684135069638365, 1043003293054453121] |