n | a(n) |
---|---|
1 | 3 |
2 | 6 |
3 | 12 |
4 | 42 |
5 | 264 |
6 | 7854 |
7 | 1742340 |
8 | 13193757150 |
9 | 23257794237223260 |
10 | 335898688241823720134366994 |
11 | 8741068101725985426803544574993582139663040 |
12 | 10804929509114651140815139777774933903800232548407116235780609072606838 |
[3,6,12,42,264,7854,1742340,13193757150, 23257794237223260,335898688241823720134366994, 8741068101725985426803544574993582139663040, 10804929509114651140815139777774933903800232548407\ 116235780609072606838] |