n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 46 |
4 | 285 |
5 | 2021 |
6 | 16023 |
7 | 139812 |
8 | 1326111 |
9 | 13544857 |
10 | 147880458 |
11 | 1715413558 |
12 | 21036674321 |
13 | 271585117428 |
14 | 3677831536291 |
15 | 52081368845176 |
16 | 769123715337395 |
17 | 11816582501728389 |
18 | 188470925178659344 |
19 | 3114771205613655362 |
[1,2,9,46,285,2021,16023,139812,1326111,13544857, 147880458,1715413558,21036674321,271585117428, 3677831536291,52081368845176,769123715337395, 11816582501728389,188470925178659344, 3114771205613655362] |