n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 2 |
7 | 5 |
8 | 7 |
9 | 16 |
10 | 28 |
11 | 63 |
12 | 131 |
13 | 301 |
14 | 673 |
15 | 1600 |
16 | 3773 |
17 | 9158 |
18 | 22319 |
19 | 55255 |
20 | 137563 |
21 | 345930 |
22 | 874736 |
23 | 2227371 |
24 | 5700069 |
25 | 14664077 |
26 | 37888336 |
27 | 98310195 |
28 | 256037795 |
29 | 669184336 |
30 | 1754609183 |
31 | 4614527680 |
[1,1,0,1,1,2,2,5,7,16,28,63,131,301,673,1600,3773, 9158,22319,55255,137563,345930,874736,2227371, 5700069,14664077,37888336,98310195,256037795, 669184336,1754609183,4614527680] |