n | a(n) |
---|---|
1 | 1 |
2 | 13 |
3 | 260 |
4 | 7020 |
5 | 238680 |
6 | 9785880 |
7 | 469722240 |
8 | 25834723200 |
9 | 1601752838400 |
10 | 110520945849600 |
11 | 8399591884569600 |
12 | 697166126419276800 |
13 | 62744951377734912000 |
14 | 6086260283640286464000 |
15 | 632971069498589792256000 |
16 | 70259788714343466940416000 |
17 | 8290655068292529098969088000 |
[1,13,260,7020,238680,9785880,469722240, 25834723200,1601752838400,110520945849600, 8399591884569600,697166126419276800, 62744951377734912000,6086260283640286464000, 632971069498589792256000, 70259788714343466940416000, 8290655068292529098969088000] |