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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 17 |
| 4 | 257 |
| 5 | 65537 |
| 6 | 641 |
| 7 | 7 |
| 8 | 318811 |
| 9 | 19 |
| 10 | 1747 |
| 11 | 12791 |
| 12 | 73 |
| 13 | 90679 |
| 14 | 67 |
| 15 | 59 |
| 16 | 113 |
| 17 | 13 |
| 18 | 41 |
| 19 | 47 |
| 20 | 151 |
| 21 | 131 |
| 22 | 1301297155768795368671 |
| 23 | 20921 |
| 24 | 1514878040967313829436066877903 |
| 25 | 5514151389810781513 |
| 26 | 283 |
| 27 | 1063 |
| 28 | 3027041 |
| 29 | 29 |
| 30 | 24040758847310589568111822987 |
| 31 | 154351 |
| 32 | 89 |
[3,5,17,257,65537,641,7,318811,19,1747,12791,73, 90679,67,59,113,13,41,47,151,131, 1301297155768795368671,20921, 1514878040967313829436066877903, 5514151389810781513,283,1063,3027041,29, 24040758847310589568111822987,154351,89] |