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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 17 |
| 5 | 107 |
| 6 | 598 |
| 7 | 5688 |
| 8 | 77906 |
| 9 | 1352347 |
| 10 | 34249359 |
| 11 | 1204670396 |
| 12 | 58155968015 |
| 13 | 3946610726739 |
| 14 | 371524667930965 |
| 15 | 48587161215494423 |
| 16 | 8859996760746649440 |
| 17 | 2245679398171585663077 |
| 18 | 791847513412090215745935 |
[1,3,5,17,107,598,5688,77906,1352347,34249359, 1204670396,58155968015,3946610726739, 371524667930965,48587161215494423, 8859996760746649440,2245679398171585663077, 791847513412090215745935] |