n | a(n) |
---|---|
0 | 2 |
1 | 5 |
2 | 14 |
3 | 46 |
4 | 178 |
5 | 800 |
6 | 4094 |
7 | 23536 |
8 | 150178 |
9 | 1053440 |
10 | 8057774 |
11 | 66750976 |
12 | 595380178 |
13 | 5688903680 |
14 | 57975175454 |
15 | 627692271616 |
16 | 7195247514178 |
17 | 87056789995520 |
18 | 1108708685037134 |
19 | 14825405274259456 |
20 | 207676251991176178 |
[2,5,14,46,178,800,4094,23536,150178,1053440, 8057774,66750976,595380178,5688903680,57975175454, 627692271616,7195247514178,87056789995520, 1108708685037134,14825405274259456, 207676251991176178] |