n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 5 |
4 | 1 |
5 | 15 |
6 | 20 |
7 | 1 |
8 | 105 |
9 | 80 |
10 | 60 |
11 | 1 |
12 | 425 |
13 | 1200 |
14 | 300 |
15 | 120 |
16 | 1 |
17 | 3075 |
18 | 10400 |
19 | 5400 |
20 | 720 |
21 | 120 |
22 | 1 |
23 | 15855 |
24 | 102200 |
25 | 75600 |
26 | 15120 |
27 | 840 |
28 | 0 |
29 | 1 |
30 | 123515 |
31 | 1149120 |
32 | 907200 |
33 | 241920 |
34 | 20160 |
35 | 0 |
36 | 0 |
37 | 1 |
38 | 757755 |
39 | 12783680 |
40 | 13426560 |
41 | 3719520 |
42 | 362880 |
[1,1,5,1,15,20,1,105,80,60,1,425,1200,300,120,1, 3075,10400,5400,720,120,1,15855,102200,75600, 15120,840,0,1,123515,1149120,907200,241920,20160, 0,0,1,757755,12783680,13426560,3719520,362880] |