n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 2 |
7 | 3 |
8 | 6 |
9 | 9 |
10 | 18 |
11 | 30 |
12 | 60 |
13 | 105 |
14 | 210 |
15 | 381 |
16 | 765 |
17 | 1425 |
18 | 2868 |
19 | 5454 |
20 | 11004 |
21 | 21210 |
22 | 42930 |
23 | 83673 |
24 | 169851 |
25 | 333843 |
26 | 679602 |
27 | 1345476 |
28 | 2745636 |
29 | 5467275 |
30 | 11182365 |
31 | 22379895 |
32 | 45866418 |
33 | 92180781 |
34 | 189275955 |
35 | 381831396 |
36 | 785328636 |
[0,1,1,0,1,1,2,3,6,9,18,30,60,105,210,381,765, 1425,2868,5454,11004,21210,42930,83673,169851, 333843,679602,1345476,2745636,5467275,11182365, 22379895,45866418,92180781,189275955,381831396, 785328636] |