n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 17 |
3 | 51 |
4 | 417 |
5 | 1251 |
6 | 7089 |
7 | 21267 |
8 | 206657 |
9 | 619971 |
10 | 3513169 |
11 | 10539507 |
12 | 86175969 |
13 | 258527907 |
14 | 1464991473 |
15 | 4394974419 |
16 | 44854599297 |
17 | 134563797891 |
18 | 762528188049 |
19 | 2287584564147 |
20 | 18704367906849 |
21 | 56113103720547 |
22 | 317974254416433 |
23 | 953922763249299 |
24 | 9269516926920129 |
[1,3,17,51,417,1251,7089,21267,206657,619971, 3513169,10539507,86175969,258527907,1464991473, 4394974419,44854599297,134563797891,762528188049, 2287584564147,18704367906849,56113103720547, 317974254416433,953922763249299,9269516926920129] |