n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 5 |
5 | 19 |
6 | 95 |
7 | 569 |
8 | 3957 |
9 | 31455 |
10 | 281435 |
11 | 2799981 |
12 | 30666153 |
13 | 366646995 |
14 | 4751669391 |
15 | 66348304849 |
16 | 992975080813 |
17 | 15856445382119 |
18 | 269096399032035 |
19 | 4836375742967861 |
20 | 91766664243841393 |
21 | 1833100630242606203 |
22 | 38452789552631651191 |
23 | 845116020421125048153 |
[1,1,1,5,19,95,569,3957,31455,281435,2799981, 30666153,366646995,4751669391,66348304849, 992975080813,15856445382119,269096399032035, 4836375742967861,91766664243841393, 1833100630242606203,38452789552631651191, 845116020421125048153] |