n | a(n) |
---|---|
1 | 3 |
2 | 2 |
3 | 12 |
4 | 76 |
5 | 504 |
6 | 3472 |
7 | 24672 |
8 | 179792 |
9 | 1337376 |
10 | 10117312 |
11 | 77618304 |
12 | 602528640 |
13 | 4724294400 |
14 | 37361809920 |
15 | 297683352576 |
16 | 2387325283584 |
17 | 19255919325696 |
18 | 156110855965696 |
19 | 1271401468151808 |
[3,2,12,76,504,3472,24672,179792,1337376,10117312, 77618304,602528640,4724294400,37361809920, 297683352576,2387325283584,19255919325696, 156110855965696,1271401468151808] |