n | a(n) |
---|---|
2 | 1 |
3 | 2 |
4 | 4 |
5 | 32 |
6 | 98 |
7 | 1034 |
8 | 3484 |
9 | 41582 |
10 | 1868198 |
11 | 6751460 |
12 | 330246410 |
13 | 4522217312 |
14 | 16829506610 |
15 | 235344648416 |
16 | 12559206444236 |
17 | 683534482499900 |
18 | 2599887148071402 |
19 | 144419015585768252 |
20 | 2117118216002111198 |
21 | 8120930597438173620 |
[1,2,4,32,98,1034,3484,41582,1868198,6751460, 330246410,4522217312,16829506610,235344648416, 12559206444236,683534482499900,2599887148071402, 144419015585768252,2117118216002111198, 8120930597438173620] |