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| n | a(n) |
|---|---|
| 1 | 47 |
| 2 | 53 |
| 3 | 61 |
| 4 | 109 |
| 5 | 173 |
| 6 | 557 |
| 7 | 1069 |
| 8 | 8237 |
| 9 | 65581 |
| 10 | 134217773 |
| 11 | 2147483693 |
| 12 | 549755813933 |
| 13 | 4835703278458516698824749 |
| 14 | 19342813113834066795298861 |
| 15 | 170141183460469231731687303715884105773 |
| 16 | 2854495385411919762116571938898990272765493293 |
[47,53,61,109,173,557,1069,8237,65581,134217773, 2147483693,549755813933,4835703278458516698824749, 19342813113834066795298861, 170141183460469231731687303715884105773, 2854495385411919762116571938898990272765493293] |