n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 9 |
4 | 52 |
5 | 125 |
6 | 1806 |
7 | 5047 |
8 | 87368 |
9 | 544329 |
10 | 7408810 |
11 | 39916811 |
12 | 1281329292 |
13 | 6227020813 |
14 | 174477663374 |
15 | 2015997984015 |
16 | 45336862771216 |
17 | 355687428096017 |
18 | 16059446167564818 |
19 | 121645100408832019 |
20 | 5372665305815808020 |
21 | 76707372899469312021 |
22 | 2248001765299683993622 |
[1,4,9,52,125,1806,5047,87368,544329,7408810, 39916811,1281329292,6227020813,174477663374, 2015997984015,45336862771216,355687428096017, 16059446167564818,121645100408832019, 5372665305815808020,76707372899469312021, 2248001765299683993622] |