n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 12 |
4 | 48 |
5 | 240 |
6 | 240 |
7 | 1680 |
8 | 6720 |
9 | 20160 |
10 | 4032 |
11 | 44352 |
12 | 44352 |
13 | 576576 |
14 | 576576 |
15 | 2882880 |
16 | 11531520 |
17 | 196035840 |
18 | 196035840 |
19 | 3724680960 |
20 | 3724680960 |
21 | 3724680960 |
22 | 3724680960 |
23 | 85667662080 |
24 | 85667662080 |
25 | 428338310400 |
26 | 428338310400 |
[1,4,12,48,240,240,1680,6720,20160,4032,44352, 44352,576576,576576,2882880,11531520,196035840, 196035840,3724680960,3724680960,3724680960, 3724680960,85667662080,85667662080,428338310400, 428338310400] |