n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 6 |
5 | 19 |
6 | 99 |
7 | 307 |
8 | 9379 |
9 | 1726174 |
10 | 13347339102 |
11 | 321699559882750174 |
12 | 4716070968330003553938242926174 |
13 | 23987291841663781653328392594255840802707701158676395299 |
[1,2,3,6,19,99,307,9379,1726174,13347339102, 321699559882750174, 4716070968330003553938242926174, 23987291841663781653328392594255840802707701158676\ 395299] |