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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 103 |
| 4 | 26796621 |
| 5 | 236092315725004393 |
| 6 | 3561970421302126514421966146019939188025056477849165490630219227287 |
[1,9,103,26796621,236092315725004393, 35619704213021265144219661460199391880250564778491\ 65490630219227287] |