n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 120 |
6 | 720 |
7 | 4320 |
8 | 25920 |
9 | 155520 |
10 | 933120 |
11 | 5598720 |
12 | 31717320 |
13 | 173822136 |
14 | 939044202 |
15 | 5067707074 |
16 | 27561477307 |
17 | 151889090893 |
18 | 842976736704 |
19 | 4692532619752 |
20 | 26135294146080 |
21 | 145451000459904 |
22 | 808518619766592 |
[1,2,6,24,120,720,4320,25920,155520,933120, 5598720,31717320,173822136,939044202,5067707074, 27561477307,151889090893,842976736704, 4692532619752,26135294146080,145451000459904, 808518619766592] |