n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 24 |
4 | 366 |
5 | 7980 |
6 | 212880 |
7 | 6974520 |
8 | 267915690 |
9 | 11862673620 |
10 | 594440826420 |
11 | 33270303029040 |
12 | 2057075448923880 |
13 | 139254109289895600 |
14 | 10243988810221846680 |
15 | 813714967541542706640 |
[2,2,24,366,7980,212880,6974520,267915690, 11862673620,594440826420,33270303029040, 2057075448923880,139254109289895600, 10243988810221846680,813714967541542706640] |