n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 15 |
4 | 108 |
5 | 1036 |
6 | 12569 |
7 | 185704 |
8 | 3247546 |
9 | 65762269 |
10 | 1515642725 |
11 | 39211570981 |
12 | 1125987938801 |
13 | 35554753133312 |
14 | 1224882431140838 |
15 | 45731901253649898 |
16 | 1839804317195739634 |
17 | 79355626796692509253 |
18 | 3653687500034925338348 |
[1,1,3,15,108,1036,12569,185704,3247546,65762269, 1515642725,39211570981,1125987938801, 35554753133312,1224882431140838,45731901253649898, 1839804317195739634,79355626796692509253, 3653687500034925338348] |