n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 7 |
5 | 36 |
6 | 245 |
7 | 2072 |
8 | 20913 |
9 | 245012 |
10 | 3265581 |
11 | 48766020 |
12 | 806254126 |
13 | 14616629622 |
14 | 288272307999 |
15 | 6144034279588 |
16 | 140715744051270 |
17 | 3446290524236454 |
18 | 89874216926157157 |
19 | 2486386071747194244 |
[1,1,1,2,7,36,245,2072,20913,245012,3265581, 48766020,806254126,14616629622,288272307999, 6144034279588,140715744051270,3446290524236454, 89874216926157157,2486386071747194244] |