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A051296 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 11 |
| 4 | 47 |
| 5 | 231 |
| 6 | 1303 |
| 7 | 8431 |
| 8 | 62391 |
| 9 | 524495 |
| 10 | 4960775 |
| 11 | 52223775 |
| 12 | 605595319 |
| 13 | 7664578639 |
| 14 | 105046841127 |
| 15 | 1548880173119 |
| 16 | 24434511267863 |
| 17 | 410503693136559 |
| 18 | 7315133279097607 |
| 19 | 137787834979031839 |
| 20 | 2734998201208351479 |
| 21 | 57053644562104430735 |
| 22 | 1247772806059088954855 |
[1,1,3,11,47,231,1303,8431,62391,524495,4960775, 52223775,605595319,7664578639,105046841127, 1548880173119,24434511267863,410503693136559, 7315133279097607,137787834979031839, 2734998201208351479,57053644562104430735, 1247772806059088954855] |