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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 13 |
| 4 | 31 |
| 5 | 113 |
| 6 | 61 |
| 7 | 193 |
| 8 | 211 |
| 9 | 181 |
| 10 | 241 |
| 11 | 13313 |
| 12 | 421 |
| 13 | 12289 |
| 14 | 2113 |
| 15 | 1009 |
| 16 | 1321 |
| 17 | 2424833 |
| 18 | 1801 |
| 19 | 786433 |
| 20 | 2161 |
| 21 | 4801 |
| 22 | 15361 |
| 23 | 155189249 |
| 24 | 2521 |
| 25 | 6481 |
| 26 | 61441 |
| 27 | 6301 |
| 28 | 8641 |
| 29 | 3489660929 |
| 30 | 12241 |
| 31 | 3221225473 |
| 32 | 7561 |
| 33 | 64513 |
| 34 | 1376257 |
| 35 | 58321 |
| 36 | 12601 |
| 37 | 206158430209 |
| 38 | 8650753 |
| 39 | 184321 |
[3,7,13,31,113,61,193,211,181,241,13313,421,12289, 2113,1009,1321,2424833,1801,786433,2161,4801, 15361,155189249,2521,6481,61441,6301,8641, 3489660929,12241,3221225473,7561,64513,1376257, 58321,12601,206158430209,8650753,184321] |