n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 62 |
4 | 448 |
5 | 3495 |
6 | 28640 |
7 | 242946 |
8 | 2114829 |
9 | 18783658 |
10 | 169546150 |
11 | 1550728135 |
12 | 14340859992 |
13 | 133867779775 |
14 | 1259689173181 |
15 | 11936488052113 |
16 | 113799596287017 |
17 | 1090803942244627 |
18 | 10505978544362607 |
19 | 101623141479156708 |
20 | 986801698075230291 |
[1,2,10,62,448,3495,28640,242946,2114829,18783658, 169546150,1550728135,14340859992,133867779775, 1259689173181,11936488052113,113799596287017, 1090803942244627,10505978544362607, 101623141479156708,986801698075230291] |