n | a(n) |
---|---|
2 | 1 |
3 | 0 |
4 | 2 |
5 | 1 |
6 | 6 |
7 | 6 |
8 | 21 |
9 | 30 |
10 | 82 |
11 | 141 |
12 | 342 |
13 | 650 |
14 | 1485 |
15 | 2982 |
16 | 6612 |
17 | 13693 |
18 | 29922 |
19 | 63072 |
20 | 136905 |
21 | 291618 |
22 | 631302 |
23 | 1353441 |
24 | 2928054 |
25 | 6303798 |
26 | 13642117 |
27 | 29454702 |
28 | 63791456 |
29 | 138020533 |
30 | 299191968 |
31 | 648376932 |
32 | 1406836717 |
33 | 3052671816 |
34 | 6629649798 |
35 | 14400972413 |
36 | 31301837952 |
[1,0,2,1,6,6,21,30,82,141,342,650,1485,2982,6612, 13693,29922,63072,136905,291618,631302,1353441, 2928054,6303798,13642117,29454702,63791456, 138020533,299191968,648376932,1406836717, 3052671816,6629649798,14400972413,31301837952] |