n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 5 |
4 | 16 |
5 | 59 |
6 | 246 |
7 | 1103 |
8 | 5247 |
9 | 26059 |
10 | 133881 |
11 | 706799 |
12 | 3815311 |
13 | 20979619 |
14 | 117178725 |
15 | 663316190 |
16 | 3798697446 |
17 | 21976689397 |
[1,2,5,16,59,246,1103,5247,26059,133881,706799, 3815311,20979619,117178725,663316190,3798697446, 21976689397] |