n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 11 |
4 | 80 |
5 | 714 |
6 | 7095 |
7 | 76206 |
8 | 864590 |
9 | 10227727 |
10 | 125001862 |
11 | 1568419058 |
12 | 20108619244 |
13 | 262510020319 |
14 | 3479914302802 |
15 | 46742907726147 |
16 | 635092339459857 |
17 | 8716058291255777 |
18 | 120686879727465365 |
19 | 1684357785848110976 |
[1,1,2,11,80,714,7095,76206,864590,10227727, 125001862,1568419058,20108619244,262510020319, 3479914302802,46742907726147,635092339459857, 8716058291255777,120686879727465365, 1684357785848110976] |