n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 154 |
4 | 2270394624 |
5 | 571030462095782973206774552784 |
6 | 3824475917061034074298122508414160251634847335755905881951011420229530501911521280 |
[1,2,154,2270394624, 571030462095782973206774552784, 38244759170610340742981225084141602516348473357559\ 05881951011420229530501911521280] |