n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 2 |
4 | 3 |
5 | 6 |
6 | 11 |
7 | 20 |
8 | 36 |
9 | 69 |
10 | 126 |
11 | 237 |
12 | 446 |
13 | 841 |
14 | 1595 |
15 | 3046 |
16 | 5840 |
17 | 11238 |
18 | 21684 |
19 | 41955 |
20 | 81333 |
21 | 158007 |
22 | 307378 |
23 | 598968 |
24 | 1168767 |
25 | 2283307 |
26 | 4465653 |
27 | 8742429 |
28 | 17130723 |
29 | 33594988 |
30 | 65933365 |
31 | 129491817 |
32 | 254484590 |
33 | 500430065 |
34 | 984625784 |
[0,0,0,2,3,6,11,20,36,69,126,237,446,841,1595, 3046,5840,11238,21684,41955,81333,158007,307378, 598968,1168767,2283307,4465653,8742429,17130723, 33594988,65933365,129491817,254484590,500430065, 984625784] |