n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 1 |
8 | 2 |
9 | 4 |
10 | 9 |
11 | 21 |
12 | 44 |
13 | 96 |
14 | 206 |
15 | 450 |
16 | 981 |
17 | 2159 |
18 | 4757 |
19 | 10571 |
20 | 23563 |
21 | 52835 |
22 | 118939 |
23 | 269047 |
24 | 610878 |
25 | 1392677 |
26 | 3186001 |
27 | 7313882 |
28 | 16842202 |
29 | 38900699 |
30 | 90098260 |
31 | 209229601 |
32 | 487077685 |
33 | 1136549747 |
34 | 2657859059 |
35 | 6228447488 |
36 | 14624515804 |
37 | 34402798404 |
[1,1,0,0,0,0,0,1,2,4,9,21,44,96,206,450,981,2159, 4757,10571,23563,52835,118939,269047,610878, 1392677,3186001,7313882,16842202,38900699, 90098260,209229601,487077685,1136549747, 2657859059,6228447488,14624515804,34402798404] |