n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 13 |
3 | 49 |
4 | 277 |
5 | 1321 |
6 | 6733 |
7 | 33409 |
8 | 167557 |
9 | 836761 |
10 | 4185853 |
11 | 20925169 |
12 | 104634037 |
13 | 523153801 |
14 | 2615801773 |
15 | 13078943329 |
16 | 65394847717 |
17 | 326973976441 |
18 | 1634870406493 |
19 | 8174350983889 |
20 | 40871757016597 |
21 | 204358780888681 |
22 | 1021793912832013 |
23 | 5108969547382849 |
24 | 25544847770468677 |
[1,1,13,49,277,1321,6733,33409,167557,836761, 4185853,20925169,104634037,523153801,2615801773, 13078943329,65394847717,326973976441, 1634870406493,8174350983889,40871757016597, 204358780888681,1021793912832013,5108969547382849, 25544847770468677] |