n | a(n) |
---|---|
3 | 1 |
4 | 0 |
5 | 3 |
6 | 0 |
7 | 12 |
8 | 0 |
9 | 54 |
10 | 0 |
11 | 264 |
12 | 0 |
13 | 1365 |
14 | 0 |
15 | 7344 |
16 | 0 |
17 | 40698 |
18 | 0 |
19 | 230736 |
20 | 0 |
21 | 1332045 |
22 | 0 |
23 | 7803900 |
24 | 0 |
25 | 46280520 |
26 | 0 |
27 | 277294752 |
28 | 0 |
29 | 1676056044 |
30 | 0 |
31 | 10207492512 |
32 | 0 |
33 | 62576750610 |
34 | 0 |
35 | 385856498592 |
36 | 0 |
37 | 2391506423565 |
38 | 0 |
39 | 14890534347780 |
40 | 0 |
[1,0,3,0,12,0,54,0,264,0,1365,0,7344,0,40698,0, 230736,0,1332045,0,7803900,0,46280520,0,277294752, 0,1676056044,0,10207492512,0,62576750610,0, 385856498592,0,2391506423565,0,14890534347780,0] |