The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 31 |
| 6 | 13 |
| 7 | 257 |
| 8 | 73 |
| 9 | 683 |
| 10 | 127 |
| 11 | 331 |
| 12 | 109 |
| 13 | 61681 |
| 14 | 5419 |
| 15 | 2796203 |
| 16 | 8191 |
| 17 | 3033169 |
| 18 | 1321 |
| 19 | 599479 |
| 20 | 122921 |
| 21 | 38737 |
| 22 | 22366891 |
| 23 | 8831418697 |
| 24 | 2931542417 |
| 25 | 22253377 |
| 26 | 268501 |
| 27 | 131071 |
| 28 | 28059810762433 |
| 29 | 279073 |
| 30 | 54410972897 |
| 31 | 77158673929 |
| 32 | 145295143558111 |
| 33 | 2879347902817 |
| 34 | 10052678938039 |
[3,5,7,31,13,257,73,683,127,331,109,61681,5419, 2796203,8191,3033169,1321,599479,122921,38737, 22366891,8831418697,2931542417,22253377,268501, 131071,28059810762433,279073,54410972897, 77158673929,145295143558111,2879347902817, 10052678938039] |