n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 6 |
4 | 13 |
5 | 112 |
6 | 418 |
7 | 4025 |
8 | 23773 |
9 | 237256 |
10 | 2022526 |
11 | 20878803 |
12 | 236842838 |
13 | 2567676659 |
14 | 36410743437 |
15 | 419956671339 |
16 | 7116408372829 |
17 | 87937527652592 |
18 | 1724613303370022 |
19 | 22889017703271151 |
20 | 507452662263001722 |
21 | 7236316297556572973 |
22 | 178035555403835890935 |
23 | 2728137658918521763201 |
[1,1,1,6,13,112,418,4025,23773,237256,2022526, 20878803,236842838,2567676659,36410743437, 419956671339,7116408372829,87937527652592, 1724613303370022,22889017703271151, 507452662263001722,7236316297556572973, 178035555403835890935,2728137658918521763201] |