n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 4 |
5 | 0 |
6 | 2 |
7 | 15 |
8 | 3 |
9 | 0 |
10 | 6 |
11 | 76 |
12 | 20 |
13 | 0 |
14 | 0 |
15 | 24 |
16 | 455 |
17 | 105 |
18 | 40 |
19 | 0 |
20 | 0 |
21 | 120 |
22 | 3186 |
23 | 714 |
24 | 420 |
25 | 0 |
26 | 0 |
27 | 0 |
28 | 720 |
29 | 25487 |
30 | 5845 |
31 | 2688 |
32 | 1260 |
33 | 0 |
34 | 0 |
35 | 0 |
36 | 5040 |
37 | 229384 |
38 | 52632 |
39 | 22400 |
40 | 18144 |
41 | 0 |
42 | 0 |
43 | 0 |
44 | 0 |
45 | 40320 |
46 | 2293839 |
47 | 525105 |
48 | 223200 |
49 | 151200 |
50 | 72576 |
51 | 0 |
52 | 0 |
53 | 0 |
54 | 0 |
55 | 362880 |
56 | 25232230 |
[1,1,1,4,0,2,15,3,0,6,76,20,0,0,24,455,105,40,0,0, 120,3186,714,420,0,0,0,720,25487,5845,2688,1260,0, 0,0,5040,229384,52632,22400,18144,0,0,0,0,40320, 2293839,525105,223200,151200,72576,0,0,0,0,362880, 25232230] |