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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 691 |
| 4 | 3617 |
| 5 | 174611 |
| 6 | 236364091 |
| 7 | 3392780147 |
| 8 | 7709321041217 |
| 9 | 26315271553053477373 |
| 10 | 261082718496449122051 |
| 11 | 2530297234481911294093 |
| 12 | 5609403368997817686249127547 |
| 13 | 61628132164268458257532691681 |
| 14 | 354198989901889536240773677094747 |
[1,1,1,691,3617,174611,236364091,3392780147, 7709321041217,26315271553053477373, 261082718496449122051,2530297234481911294093, 5609403368997817686249127547, 61628132164268458257532691681, 354198989901889536240773677094747] |