n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 5 |
5 | 17 |
6 | 53 |
7 | 260 |
8 | 1466 |
9 | 10915 |
10 | 93196 |
11 | 917898 |
12 | 10015299 |
13 | 119914982 |
14 | 1557364352 |
15 | 21797494987 |
16 | 326930305166 |
17 | 5230756117008 |
18 | 88922108947567 |
19 | 1600594738591550 |
20 | 30411281088326498 |
21 | 608225534389576956 |
22 | 12772735698577492558 |
[1,1,3,5,17,53,260,1466,10915,93196,917898, 10015299,119914982,1557364352,21797494987, 326930305166,5230756117008,88922108947567, 1600594738591550,30411281088326498, 608225534389576956,12772735698577492558] |