n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 12 |
5 | 60 |
6 | 120 |
7 | 280 |
8 | 168 |
9 | 210 |
10 | 1680 |
11 | 2640 |
12 | 332640 |
13 | 4324320 |
14 | 8648640 |
15 | 43243200 |
16 | 900900 |
17 | 735134400 |
18 | 3150576 |
19 | 2618916300 |
20 | 83805321600 |
21 | 586637251200 |
22 | 586637251200 |
23 | 749592043200 |
24 | 2248776129600 |
25 | 642507465600 |
26 | 13492656777600 |
27 | 41644002400 |
28 | 53970627110400 |
[1,1,2,6,12,60,120,280,168,210,1680,2640,332640, 4324320,8648640,43243200,900900,735134400,3150576, 2618916300,83805321600,586637251200,586637251200, 749592043200,2248776129600,642507465600, 13492656777600,41644002400,53970627110400] |