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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 16 |
| 5 | 32 |
| 6 | 64 |
| 7 | 128 |
| 8 | 256 |
| 9 | 511 |
| 10 | 1019 |
| 11 | 2031 |
| 12 | 4047 |
| 13 | 8063 |
| 14 | 16063 |
| 15 | 31999 |
| 16 | 63743 |
| 17 | 126976 |
| 18 | 252934 |
| 19 | 503838 |
| 20 | 1003630 |
| 21 | 1999198 |
| 22 | 3982334 |
| 23 | 7932670 |
| 24 | 15801598 |
| 25 | 31476221 |
| 26 | 62699509 |
| 27 | 124895181 |
| 28 | 248786733 |
| 29 | 495574269 |
| 30 | 987166205 |
| 31 | 1966399741 |
| 32 | 3916997885 |
| 33 | 7802519550 |
[1,2,4,8,16,32,64,128,256,511,1019,2031,4047,8063, 16063,31999,63743,126976,252934,503838,1003630, 1999198,3982334,7932670,15801598,31476221, 62699509,124895181,248786733,495574269,987166205, 1966399741,3916997885,7802519550] |