n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 17 |
4 | 87 |
5 | 324 |
6 | 1707 |
7 | 6595 |
8 | 35300 |
9 | 139114 |
10 | 751901 |
11 | 3000177 |
12 | 16322561 |
13 | 65684626 |
14 | 359049028 |
15 | 1453825024 |
16 | 7975236698 |
17 | 32444454286 |
18 | 178473218093 |
19 | 728737293093 |
20 | 4017589328269 |
21 | 16453338330248 |
22 | 90873261482607 |
23 | 373067000217563 |
[1,5,17,87,324,1707,6595,35300,139114,751901, 3000177,16322561,65684626,359049028,1453825024, 7975236698,32444454286,178473218093,728737293093, 4017589328269,16453338330248,90873261482607, 373067000217563] |