n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 5 |
5 | 23 |
6 | 131 |
7 | 883 |
8 | 6859 |
9 | 60301 |
10 | 591605 |
11 | 6405317 |
12 | 75843233 |
13 | 974763571 |
14 | 13512607303 |
15 | 200949508327 |
16 | 3190881283415 |
17 | 53880906258521 |
18 | 964039575154409 |
19 | 18217997734199113 |
20 | 362584510633666621 |
21 | 7580578211464070863 |
22 | 166099466140519353035 |
23 | 3806162403831340850651 |
[1,1,1,1,5,23,131,883,6859,60301,591605,6405317, 75843233,974763571,13512607303,200949508327, 3190881283415,53880906258521,964039575154409, 18217997734199113,362584510633666621, 7580578211464070863,166099466140519353035, 3806162403831340850651] |