n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 5 |
8 | 17 |
9 | 37 |
10 | 69 |
11 | 119 |
12 | 413 |
13 | 1361 |
14 | 4953 |
15 | 21841 |
16 | 100255 |
17 | 486625 |
18 | 2729263 |
19 | 14571959 |
20 | 98507721 |
21 | 677047259 |
[1,1,1,1,1,1,5,17,37,69,119,413,1361,4953,21841, 100255,486625,2729263,14571959,98507721,677047259] |