n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 40 |
4 | 1376 |
5 | 1314816 |
6 | 912818962432 |
7 | 291201248266450683035648 |
8 | 14704022144627161780744368338695925293142507520 |
9 | 12553242487940503914363982718112298267975272720808010757809032705650591023015520462677475328 |
[2,6,40,1376,1314816,912818962432, 291201248266450683035648, 14704022144627161780744368338695925293142507520, 12553242487940503914363982718112298267975272720808\ 010757809032705650591023015520462677475328] |