n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 12 |
5 | 24 |
6 | 168 |
7 | 840 |
8 | 2520 |
9 | 27720 |
10 | 471240 |
11 | 942480 |
12 | 12252240 |
13 | 24504480 |
14 | 465585120 |
15 | 2327925600 |
16 | 72165693600 |
17 | 216497080800 |
18 | 6278415343200 |
19 | 144403552893600 |
20 | 288807105787200 |
21 | 12418705548849600 |
22 | 509166927502833600 |
23 | 18839176317604843200 |
24 | 131874234223233902400 |
25 | 6989334413831396827200 |
26 | 328498717450075650878400 |
[1,2,4,12,24,168,840,2520,27720,471240,942480, 12252240,24504480,465585120,2327925600, 72165693600,216497080800,6278415343200, 144403552893600,288807105787200,12418705548849600, 509166927502833600,18839176317604843200, 131874234223233902400,6989334413831396827200, 328498717450075650878400] |