n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 5 |
8 | 13 |
9 | 35 |
10 | 61 |
11 | 141 |
12 | 427 |
13 | 1351 |
14 | 4209 |
15 | 19211 |
16 | 75163 |
17 | 402147 |
18 | 1986547 |
19 | 12595631 |
20 | 74795099 |
21 | 557304499 |
[1,1,1,1,1,1,5,13,35,61,141,427,1351,4209,19211, 75163,402147,1986547,12595631,74795099,557304499] |