n | a(n) |
---|---|
1 | 1 |
2 | 11 |
3 | 31 |
4 | 71 |
5 | 151 |
6 | 311 |
7 | 631 |
8 | 1271 |
9 | 2551 |
10 | 5111 |
11 | 10231 |
12 | 20471 |
13 | 40951 |
14 | 81911 |
15 | 163831 |
16 | 327671 |
17 | 655351 |
18 | 1310711 |
19 | 2621431 |
20 | 5242871 |
21 | 10485751 |
22 | 20971511 |
23 | 41943031 |
24 | 83886071 |
25 | 167772151 |
26 | 335544311 |
27 | 671088631 |
28 | 1342177271 |
29 | 2684354551 |
[1,11,31,71,151,311,631,1271,2551,5111,10231, 20471,40951,81911,163831,327671,655351,1310711, 2621431,5242871,10485751,20971511,41943031, 83886071,167772151,335544311,671088631,1342177271, 2684354551] |