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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 0 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 19 |
| 7 | 17 |
| 8 | 31 |
| 9 | 97 |
| 10 | 191 |
| 11 | 127 |
| 12 | 449 |
| 13 | 769 |
| 14 | 3329 |
| 15 | 6143 |
| 16 | 7937 |
| 17 | 12799 |
| 18 | 51199 |
| 19 | 8191 |
| 20 | 165887 |
| 21 | 65537 |
| 22 | 131071 |
| 23 | 1179649 |
| 24 | 2654209 |
| 25 | 7995391 |
| 26 | 524287 |
| 27 | 10616831 |
| 28 | 12910591 |
| 29 | 167772161 |
| 30 | 113246209 |
| 31 | 169869311 |
| 32 | 155189249 |
| 33 | 1887436799 |
| 34 | 3221225473 |
[2,0,3,5,7,19,17,31,97,191,127,449,769,3329,6143, 7937,12799,51199,8191,165887,65537,131071,1179649, 2654209,7995391,524287,10616831,12910591, 167772161,113246209,169869311,155189249, 1887436799,3221225473] |