n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 5 |
8 | 23 |
9 | 45 |
10 | 89 |
11 | 241 |
12 | 909 |
13 | 3431 |
14 | 17195 |
15 | 80847 |
16 | 474101 |
17 | 2777977 |
18 | 19564237 |
19 | 147127789 |
20 | 1326666153 |
21 | 12641403749 |
22 | 144835493185 |
[1,1,1,1,1,1,5,23,45,89,241,909,3431,17195,80847, 474101,2777977,19564237,147127789,1326666153, 12641403749,144835493185] |