n | a(n) |
---|---|
1 | 15 |
2 | 15 |
3 | 147 |
4 | 758 |
5 | 3800 |
6 | 17007 |
7 | 76385 |
8 | 349806 |
9 | 1607125 |
10 | 7199979 |
11 | 30981013 |
12 | 127687103 |
13 | 506185639 |
14 | 1941810446 |
15 | 7244804147 |
16 | 26372456342 |
17 | 93824668945 |
18 | 326547924276 |
19 | 1112721925642 |
20 | 3715396008519 |
21 | 12167245853141 |
22 | 39113514133345 |
[15,15,147,758,3800,17007,76385,349806,1607125, 7199979,30981013,127687103,506185639,1941810446, 7244804147,26372456342,93824668945,326547924276, 1112721925642,3715396008519,12167245853141, 39113514133345] |