n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 5 |
4 | 23 |
5 | 151 |
6 | 1141 |
7 | 10205 |
8 | 103823 |
9 | 1190191 |
10 | 15151981 |
11 | 212222405 |
12 | 3242472023 |
13 | 53670028231 |
14 | 956685677221 |
15 | 18271360434605 |
16 | 372221031054623 |
17 | 8056751598834271 |
18 | 184647141575344861 |
19 | 4466900836910758805 |
[1,1,1,5,23,151,1141,10205,103823,1190191, 15151981,212222405,3242472023,53670028231, 956685677221,18271360434605,372221031054623, 8056751598834271,184647141575344861, 4466900836910758805] |