n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 7 |
4 | 45 |
5 | 81 |
6 | 478 |
7 | 5867 |
8 | 13037 |
9 | 57181 |
10 | 416106 |
11 | 9366765 |
12 | 24102158 |
13 | 125977853 |
14 | 621133087 |
15 | 6482455264 |
16 | 237256616397 |
17 | 718626520557 |
18 | 4265634533602 |
19 | 23104830030581 |
20 | 159301153786730 |
21 | 2042750381131807 |
[1,2,3,7,45,81,478,5867,13037,57181,416106, 9366765,24102158,125977853,621133087,6482455264, 237256616397,718626520557,4265634533602, 23104830030581,159301153786730,2042750381131807] |