n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 30 |
4 | 18 |
5 | 90 |
6 | 54 |
7 | 106260 |
8 | 162 |
9 | 26040 |
10 | 486 |
11 | 341725784400 |
12 | 1458 |
13 | 6564164506066423389173040 |
14 | 4374 |
15 | 177815552218920 |
16 | 13122 |
17 | 2998833665484118393000638135815684490471025925316000 |
18 | 39366 |
[2,6,30,18,90,54,106260,162,26040,486, 341725784400,1458,6564164506066423389173040,4374, 177815552218920,13122, 29988336654841183930006381358156844904710259253160\ 00,39366] |