n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 20 |
3 | 392 |
4 | 12560 |
5 | 579872 |
6 | 36034880 |
7 | 2874676352 |
8 | 284538241280 |
9 | 34058188677632 |
10 | 4831480473359360 |
11 | 799233222752602112 |
12 | 152126941229960990720 |
13 | 32947584100184816033792 |
14 | 8042650107769696199720960 |
15 | 2194728130327915760239542272 |
16 | 664779526701915421094019399680 |
[1,2,20,392,12560,579872,36034880,2874676352, 284538241280,34058188677632,4831480473359360, 799233222752602112,152126941229960990720, 32947584100184816033792,8042650107769696199720960, 2194728130327915760239542272, 664779526701915421094019399680] |