n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 3 |
4 | 24 |
5 | 180 |
6 | 1296 |
7 | 9072 |
8 | 54432 |
9 | 297432 |
10 | 1658880 |
11 | 9722592 |
12 | 58576608 |
13 | 356638464 |
14 | 2173796352 |
15 | 13162730688 |
16 | 79012495872 |
17 | 472093588224 |
18 | 2821109907456 |
19 | 16894457846784 |
20 | 101366747080704 |
21 | 608764662139392 |
22 | 3656096522698752 |
23 | 21947538146863104 |
24 | 131685972252346368 |
[0,0,3,24,180,1296,9072,54432,297432,1658880, 9722592,58576608,356638464,2173796352,13162730688, 79012495872,472093588224,2821109907456, 16894457846784,101366747080704,608764662139392, 3656096522698752,21947538146863104, 131685972252346368] |