n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 30 |
4 | 280 |
5 | 2100 |
6 | 23100 |
7 | 210210 |
8 | 2522520 |
9 | 25729704 |
10 | 325909584 |
11 | 3585005424 |
12 | 47117214144 |
13 | 546896235600 |
14 | 7383099180600 |
15 | 89212448432250 |
16 | 1229149289511000 |
17 | 15323394475903800 |
18 | 214527522662653200 |
19 | 2742051789669912720 |
[1,6,30,280,2100,23100,210210,2522520,25729704, 325909584,3585005424,47117214144,546896235600, 7383099180600,89212448432250,1229149289511000, 15323394475903800,214527522662653200, 2742051789669912720] |