n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 12 |
4 | 132 |
5 | 2200 |
6 | 50020 |
7 | 1458576 |
8 | 52443832 |
9 | 2262992496 |
10 | 114895662336 |
11 | 6760541866320 |
12 | 455507310538720 |
13 | 34799057492306432 |
14 | 2989515666973533776 |
15 | 286751042457693435936 |
16 | 30519571712404528878560 |
[1,1,2,12,132,2200,50020,1458576,52443832, 2262992496,114895662336,6760541866320, 455507310538720,34799057492306432, 2989515666973533776,286751042457693435936, 30519571712404528878560] |