n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 12 |
4 | 48 |
5 | 288 |
6 | 2304 |
7 | 26880 |
8 | 430080 |
9 | 10035200 |
10 | 321126400 |
11 | 14836039680 |
12 | 949506539520 |
13 | 87734404251648 |
14 | 11230003744210944 |
15 | 2064716402685640704 |
16 | 528567399087524020224 |
17 | 194361783607326689722368 |
18 | 99513233206951265137852416 |
19 | 72958995691997968023051829248 |
20 | 74710011588605919255605073149952 |
[1,2,4,12,48,288,2304,26880,430080,10035200, 321126400,14836039680,949506539520,87734404251648, 11230003744210944,2064716402685640704, 528567399087524020224,194361783607326689722368, 99513233206951265137852416, 72958995691997968023051829248, 74710011588605919255605073149952] |