n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 0 |
5 | 2 |
6 | 3 |
7 | 7 |
8 | 11 |
9 | 9 |
10 | 5 |
11 | 41 |
12 | 82 |
13 | 254 |
14 | 2412 |
15 | 9524 |
16 | 13925 |
17 | 85318 |
18 | 220818 |
19 | 1662421 |
20 | 10496784 |
21 | 20690118 |
22 | 97200566 |
23 | 460358077 |
[1,1,1,0,2,3,7,11,9,5,41,82,254,2412,9524,13925, 85318,220818,1662421,10496784,20690118,97200566, 460358077] |