n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 6 |
6 | 13 |
7 | 28 |
8 | 62 |
9 | 143 |
10 | 338 |
11 | 804 |
12 | 1948 |
13 | 4789 |
14 | 11886 |
15 | 29796 |
16 | 75316 |
17 | 191702 |
18 | 491040 |
19 | 1264926 |
20 | 3274594 |
21 | 8514784 |
22 | 22229481 |
23 | 58243870 |
[1,1,2,3,6,13,28,62,143,338,804,1948,4789,11886, 29796,75316,191702,491040,1264926,3274594,8514784, 22229481,58243870] |