n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 1 |
8 | 3 |
9 | 9 |
10 | 19 |
11 | 33 |
12 | 77 |
13 | 239 |
14 | 919 |
15 | 3879 |
16 | 17353 |
17 | 75579 |
18 | 398897 |
19 | 2332505 |
20 | 16656293 |
21 | 126029691 |
22 | 1117371931 |
23 | 10274166583 |
[1,1,1,1,1,1,1,3,9,19,33,77,239,919,3879,17353, 75579,398897,2332505,16656293,126029691, 1117371931,10274166583] |