n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 2 |
4 | 12 |
5 | 80 |
6 | 512 |
7 | 4832 |
8 | 53872 |
9 | 654320 |
10 | 9264032 |
11 | 147228512 |
12 | 2559080832 |
13 | 48910122560 |
14 | 1017566317952 |
15 | 22822627908992 |
16 | 550081215323392 |
17 | 14178080204748800 |
18 | 388900281882678272 |
19 | 11314716065658294272 |
[1,2,2,12,80,512,4832,53872,654320,9264032, 147228512,2559080832,48910122560,1017566317952, 22822627908992,550081215323392,14178080204748800, 388900281882678272,11314716065658294272] |