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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 7 |
| 2 | 13 |
| 3 | 23 |
| 4 | 47 |
| 5 | 97 |
| 6 | 193 |
| 7 | 383 |
| 8 | 767 |
| 9 | 1537 |
| 10 | 3073 |
| 11 | 6143 |
| 12 | 12287 |
| 13 | 24577 |
| 14 | 49153 |
| 15 | 98303 |
| 16 | 196607 |
| 17 | 393217 |
| 18 | 786433 |
| 19 | 1572863 |
| 20 | 3145727 |
| 21 | 6291457 |
| 22 | 12582913 |
| 23 | 25165823 |
| 24 | 50331647 |
| 25 | 100663297 |
| 26 | 201326593 |
| 27 | 402653183 |
| 28 | 805306367 |
| 29 | 1610612737 |
| 30 | 3221225473 |
| 31 | 6442450943 |
| 32 | 12884901887 |
[3,7,13,23,47,97,193,383,767,1537,3073,6143,12287, 24577,49153,98303,196607,393217,786433,1572863, 3145727,6291457,12582913,25165823,50331647, 100663297,201326593,402653183,805306367, 1610612737,3221225473,6442450943,12884901887] |