n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 12 |
5 | 108 |
6 | 10476 |
7 | 108625644 |
8 | 11798392680793836 |
9 | 139202068568601568785946949658348 |
10 | 19377215893777651167043206536157529523359277782016064519251404524 |
[0,1,2,4,12,108,10476,108625644,11798392680793836, 139202068568601568785946949658348, 19377215893777651167043206536157529523359277782016\ 064519251404524] |