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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 5 |
| 2 | 17 |
| 3 | 257 |
| 4 | 65537 |
| 5 | 641 |
| 6 | 6700417 |
| 7 | 274177 |
| 8 | 67280421310721 |
| 9 | 59649589127497217 |
| 10 | 5704689200685129054721 |
| 11 | 1238926361552897 |
| 12 | 93461639715357977769163558199606896584051237541638188580280321 |
[3,5,17,257,65537,641,6700417,274177, 67280421310721,59649589127497217, 5704689200685129054721,1238926361552897, 93461639715357977769163558199606896584051237541638\ 188580280321] |