n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 24 |
8 | 24 |
9 | 240 |
10 | 240 |
11 | 1560 |
12 | 1560 |
13 | 8400 |
14 | 8400 |
15 | 40824 |
16 | 40824 |
17 | 186480 |
18 | 186480 |
19 | 818520 |
20 | 818520 |
21 | 3498000 |
22 | 3498000 |
23 | 14676024 |
24 | 14676024 |
25 | 60780720 |
26 | 60780720 |
27 | 249401880 |
28 | 249401880 |
29 | 1016542800 |
30 | 1016542800 |
31 | 4123173624 |
32 | 4123173624 |
33 | 16664094960 |
34 | 16664094960 |
[0,0,0,0,0,0,24,24,240,240,1560,1560,8400,8400, 40824,40824,186480,186480,818520,818520,3498000, 3498000,14676024,14676024,60780720,60780720, 249401880,249401880,1016542800,1016542800, 4123173624,4123173624,16664094960,16664094960] |