n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 3 |
6 | 1 |
7 | 5 |
8 | 2 |
9 | 20 |
10 | 45 |
11 | 111 |
12 | 998 |
13 | 915 |
14 | 15718 |
15 | 14778 |
16 | 191897 |
17 | 241229 |
18 | 1937847 |
19 | 3273330 |
20 | 17102347 |
21 | 37393151 |
[1,1,1,1,3,1,5,2,20,45,111,998,915,15718,14778, 191897,241229,1937847,3273330,17102347,37393151] |