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| n | a(n) |
|---|---|
| 2 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 31 |
| 6 | 61 |
| 7 | 127 |
| 8 | 251 |
| 9 | 509 |
| 10 | 1021 |
| 11 | 2039 |
| 12 | 4093 |
| 13 | 8191 |
| 14 | 16381 |
| 15 | 32749 |
| 16 | 65519 |
| 17 | 131071 |
| 18 | 262139 |
| 19 | 524287 |
| 20 | 1048573 |
| 21 | 2097143 |
| 22 | 4194301 |
| 23 | 8388587 |
| 24 | 16777213 |
| 25 | 33546239 |
| 26 | 67108859 |
| 27 | 134217467 |
| 28 | 260046847 |
| 29 | 536870909 |
| 30 | 1073741567 |
| 31 | 2147483647 |
| 32 | 4294967291 |
| 33 | 8589934583 |
| 34 | 16911433727 |
[3,7,13,31,61,127,251,509,1021,2039,4093,8191, 16381,32749,65519,131071,262139,524287,1048573, 2097143,4194301,8388587,16777213,33546239, 67108859,134217467,260046847,536870909,1073741567, 2147483647,4294967291,8589934583,16911433727] |