n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 31 |
3 | 145 |
4 | 601 |
5 | 2551 |
6 | 10351 |
7 | 42433 |
8 | 170761 |
9 | 690247 |
10 | 2768191 |
11 | 11123185 |
12 | 44543161 |
13 | 178525591 |
14 | 714455311 |
15 | 2860291873 |
16 | 11443638121 |
17 | 45791846887 |
18 | 183184681951 |
19 | 732859788625 |
20 | 2931560215321 |
21 | 11727088287031 |
22 | 46909200573871 |
23 | 187642734275713 |
24 | 750576869083081 |
[1,7,31,145,601,2551,10351,42433,170761,690247, 2768191,11123185,44543161,178525591,714455311, 2860291873,11443638121,45791846887,183184681951, 732859788625,2931560215321,11727088287031, 46909200573871,187642734275713,750576869083081] |