n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 30 |
4 | 344 |
5 | 5370 |
6 | 106452 |
7 | 2562182 |
8 | 72592816 |
9 | 2367054450 |
10 | 87320153900 |
11 | 3595646533182 |
12 | 163492924997448 |
13 | 8136172620013802 |
14 | 439858024910227588 |
15 | 25670670464821310070 |
16 | 1608575860476990991712 |
17 | 107716675117341985862370 |
[1,4,30,344,5370,106452,2562182,72592816, 2367054450,87320153900,3595646533182, 163492924997448,8136172620013802, 439858024910227588,25670670464821310070, 1608575860476990991712,107716675117341985862370] |