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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 109 |
| 4 | 3163 |
| 5 | 166201 |
| 6 | 14952367 |
| 7 | 2002052389 |
| 8 | 353291166403 |
| 9 | 77829008955121 |
| 10 | 21170264082173527 |
| 11 | 7106489649576530269 |
| 12 | 2913186117837522604843 |
| 13 | 1426879448953133350342441 |
| 14 | 816516326741659045770111487 |
| 15 | 537701607855913139967684905749 |
| 16 | 404270165862091267387117902574483 |
[1,7,109,3163,166201,14952367,2002052389, 353291166403,77829008955121,21170264082173527, 7106489649576530269,2913186117837522604843, 1426879448953133350342441, 816516326741659045770111487, 537701607855913139967684905749, 404270165862091267387117902574483] |