n | a(n) |
---|---|
1 | 840 |
2 | 5040 |
3 | 11880 |
4 | 175560 |
5 | 570024 |
6 | 5997600 |
7 | 34234200 |
8 | 70073640 |
9 | 569729160 |
10 | 1262451960 |
11 | 6643717080 |
12 | 6927399360 |
13 | 59312218680 |
14 | 657557188200 |
15 | 1288881113520 |
16 | 7994422608480 |
17 | 9803968814640 |
18 | 73148660184600 |
19 | 130903460103024 |
20 | 250036769127600 |
21 | 1081389616791120 |
[840,5040,11880,175560,570024,5997600,34234200, 70073640,569729160,1262451960,6643717080, 6927399360,59312218680,657557188200,1288881113520, 7994422608480,9803968814640,73148660184600, 130903460103024,250036769127600,1081389616791120] |