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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 397 |
| 4 | 55933 |
| 5 | 31450861 |
| 6 | 67253507293 |
| 7 | 559182556492477 |
| 8 | 18408476382988290493 |
| 9 | 2416307646576708948065581 |
| 10 | 1267404418454077249779938768413 |
| 11 | 2658301080374793666228695738368407037 |
| 12 | 22300360304310794054520197736231374212892413 |
[1,13,397,55933,31450861,67253507293, 559182556492477,18408476382988290493, 2416307646576708948065581, 1267404418454077249779938768413, 2658301080374793666228695738368407037, 22300360304310794054520197736231374212892413] |