n | a(n) |
---|---|
1 | 2 |
2 | 4 |
3 | 36 |
4 | 1536 |
5 | 22500000 |
6 | 263303591362560 |
7 | 20851424802623573443244703744000 |
8 | 504371920429767576352765364956611950142002504147895582720000000 |
[2,4,36,1536,22500000,263303591362560, 20851424802623573443244703744000, 50437192042976757635276536495661195014200250414789\ 5582720000000] |