n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 19 |
4 | 127 |
5 | 921 |
6 | 6921 |
7 | 53523 |
8 | 422199 |
9 | 3382417 |
10 | 27429043 |
11 | 224636259 |
12 | 1854761437 |
13 | 15419579761 |
14 | 128941830993 |
15 | 1083686483259 |
16 | 9147887134119 |
17 | 77520233226537 |
18 | 659167237928691 |
19 | 5622149927918763 |
20 | 48083938099637247 |
[1,3,19,127,921,6921,53523,422199,3382417, 27429043,224636259,1854761437,15419579761, 128941830993,1083686483259,9147887134119, 77520233226537,659167237928691,5622149927918763, 48083938099637247] |