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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 5 |
| 5 | 31 |
| 6 | 3 |
| 7 | 127 |
| 8 | 17 |
| 9 | 73 |
| 10 | 11 |
| 11 | 2047 |
| 12 | 13 |
| 13 | 8191 |
| 14 | 43 |
| 15 | 151 |
| 16 | 257 |
| 17 | 131071 |
| 18 | 57 |
| 19 | 524287 |
| 20 | 205 |
| 21 | 2359 |
| 22 | 683 |
| 23 | 8388607 |
| 24 | 241 |
| 25 | 1082401 |
| 26 | 2731 |
| 27 | 262657 |
| 28 | 3277 |
| 29 | 536870911 |
| 30 | 331 |
| 31 | 2147483647 |
| 32 | 65537 |
| 33 | 599479 |
| 34 | 43691 |
| 35 | 8727391 |
| 36 | 4033 |
| 37 | 137438953471 |
| 38 | 174763 |
| 39 | 9588151 |
| 40 | 61681 |
[2,1,3,7,5,31,3,127,17,73,11,2047,13,8191,43,151, 257,131071,57,524287,205,2359,683,8388607,241, 1082401,2731,262657,3277,536870911,331,2147483647, 65537,599479,43691,8727391,4033,137438953471, 174763,9588151,61681] |