n | a(n) |
---|---|
2 | 1 |
3 | 1 |
4 | 1 |
5 | 6 |
6 | 1 |
7 | 20 |
8 | 1 |
9 | 50 |
10 | 90 |
11 | 1 |
12 | 112 |
13 | 630 |
14 | 1 |
15 | 238 |
16 | 2940 |
17 | 2520 |
18 | 1 |
19 | 492 |
20 | 11508 |
21 | 30240 |
22 | 1 |
23 | 1002 |
24 | 40950 |
25 | 226800 |
26 | 113400 |
27 | 1 |
28 | 2024 |
29 | 137610 |
30 | 1367520 |
31 | 2079000 |
32 | 1 |
33 | 4070 |
34 | 445896 |
35 | 7271880 |
36 | 22869000 |
37 | 7484400 |
38 | 1 |
39 | 8164 |
40 | 1410552 |
41 | 35692800 |
42 | 196396200 |
43 | 194594400 |
44 | 1 |
45 | 16354 |
[1,1,1,6,1,20,1,50,90,1,112,630,1,238,2940,2520,1, 492,11508,30240,1,1002,40950,226800,113400,1,2024, 137610,1367520,2079000,1,4070,445896,7271880, 22869000,7484400,1,8164,1410552,35692800, 196396200,194594400,1,16354] |