n | a(n) |
---|---|
0 | 2 |
1 | 3 |
2 | 5 |
3 | 10 |
4 | 29 |
5 | 126 |
6 | 727 |
7 | 5048 |
8 | 40329 |
9 | 362890 |
10 | 3628811 |
11 | 39916812 |
12 | 479001613 |
13 | 6227020814 |
14 | 87178291215 |
15 | 1307674368016 |
16 | 20922789888017 |
17 | 355687428096018 |
18 | 6402373705728019 |
19 | 121645100408832020 |
20 | 2432902008176640021 |
[2,3,5,10,29,126,727,5048,40329,362890,3628811, 39916812,479001613,6227020814,87178291215, 1307674368016,20922789888017,355687428096018, 6402373705728019,121645100408832020, 2432902008176640021] |