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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 9 |
| 3 | 65 |
| 4 | 1025 |
| 5 | 32769 |
| 6 | 2097153 |
| 7 | 268435457 |
| 8 | 68719476737 |
| 9 | 35184372088833 |
| 10 | 36028797018963969 |
| 11 | 73786976294838206465 |
| 12 | 302231454903657293676545 |
| 13 | 2475880078570760549798248449 |
| 14 | 40564819207303340847894502572033 |
| 15 | 1329227995784915872903807060280344577 |
| 16 | 87112285931760246646623899502532662132737 |
[2,3,9,65,1025,32769,2097153,268435457, 68719476737,35184372088833,36028797018963969, 73786976294838206465,302231454903657293676545, 2475880078570760549798248449, 40564819207303340847894502572033, 1329227995784915872903807060280344577, 87112285931760246646623899502532662132737] |