n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 46 |
4 | 342 |
5 | 3108 |
6 | 33324 |
7 | 411360 |
8 | 5741856 |
9 | 89379120 |
10 | 1534623936 |
11 | 28804923024 |
12 | 586686138384 |
13 | 12885385945248 |
14 | 303537419684064 |
15 | 7633673997722496 |
16 | 204125888803996800 |
17 | 5782960189212871680 |
[1,2,8,46,342,3108,33324,411360,5741856,89379120, 1534623936,28804923024,586686138384, 12885385945248,303537419684064,7633673997722496, 204125888803996800,5782960189212871680] |