n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 7 |
8 | 9 |
9 | 31 |
10 | 55 |
11 | 549 |
12 | 1047 |
13 | 10041 |
14 | 21681 |
15 | 484881 |
16 | 1255593 |
17 | 40179283 |
18 | 122480813 |
19 | 7136007271 |
20 | 25526356825 |
21 | 2044413653787 |
22 | 8531086609057 |
23 | 1153670123416227 |
24 | 5640169181500505 |
25 | 1230123398597079731 |
[1,1,1,1,1,1,7,9,31,55,549,1047,10041,21681, 484881,1255593,40179283,122480813,7136007271, 25526356825,2044413653787,8531086609057, 1153670123416227,5640169181500505, 1230123398597079731] |