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| n | a(n) |
|---|---|
| 1 | 18 |
| 2 | 5346 |
| 3 | 953350947018 |
| 4 | 27714155515204399193517936441633366786 |
| 5 | 2724676327686279943840970955808149115560850239284680391197227771656355326713750473204820187166236658820072758036618 |
[18,5346,953350947018, 27714155515204399193517936441633366786, 27246763276862799438409709558081491155608502392846\ 80391197227771656355326713750473204820187166236658\ 820072758036618] |