n | a(n) |
---|---|
0 | 2 |
1 | 4 |
2 | 14 |
3 | 104 |
4 | 2170 |
5 | 230540 |
6 | 499596550 |
7 | 309075799150640 |
8 | 14369391928071394429416818 |
9 | 146629927766168786368451678290041110762316052 |
[2,4,14,104,2170,230540,499596550,309075799150640, 14369391928071394429416818, 146629927766168786368451678290041110762316052] |