n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 17 |
4 | 89 |
5 | 556 |
6 | 3982 |
7 | 31177 |
8 | 261069 |
9 | 2309922 |
10 | 21435122 |
11 | 207605687 |
12 | 2091924418 |
13 | 21883241424 |
14 | 237301377573 |
15 | 2664817940085 |
16 | 30965904565393 |
17 | 372114924929070 |
18 | 4621600351308022 |
19 | 59287502088944355 |
20 | 785045224973677569 |
21 | 10721533799643490991 |
22 | 150898539708638128793 |
23 | 2186680325880161158424 |
[1,2,5,17,89,556,3982,31177,261069,2309922, 21435122,207605687,2091924418,21883241424, 237301377573,2664817940085,30965904565393, 372114924929070,4621600351308022, 59287502088944355,785045224973677569, 10721533799643490991,150898539708638128793, 2186680325880161158424] |