n | a(n) |
---|---|
1 | 4 |
2 | 48 |
3 | 9 |
4 | 640 |
5 | 390 |
6 | 20 |
7 | 8960 |
8 | 20160 |
9 | 3192 |
10 | 60 |
11 | 129024 |
12 | 1106424 |
13 | 652784 |
14 | 48720 |
15 | 45 |
16 | 1892352 |
17 | 62606544 |
18 | 134432480 |
19 | 41801760 |
20 | 26010 |
21 | 420 |
22 | 28114944 |
23 | 3611217792 |
24 | 28244153600 |
25 | 36951200000 |
26 | 21594300 |
27 | 8168160 |
28 | 102 |
29 | 421724160 |
30 | 211096262400 |
[4,48,9,640,390,20,8960,20160,3192,60,129024, 1106424,652784,48720,45,1892352,62606544, 134432480,41801760,26010,420,28114944,3611217792, 28244153600,36951200000,21594300,8168160,102, 421724160,211096262400] |