n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 30 |
4 | 231 |
5 | 2453 |
6 | 33393 |
7 | 556999 |
8 | 11039026 |
9 | 254128870 |
10 | 6677972615 |
11 | 197547561340 |
12 | 6504619941881 |
13 | 236165840696980 |
14 | 9380353293627619 |
15 | 404848232250564042 |
16 | 18875601922237847288 |
17 | 945875935431064488637 |
[1,2,6,30,231,2453,33393,556999,11039026, 254128870,6677972615,197547561340,6504619941881, 236165840696980,9380353293627619, 404848232250564042,18875601922237847288, 945875935431064488637] |