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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 87 |
| 4 | 156 |
| 5 | 913 |
| 6 | 1693 |
| 7 | 69769 |
| 8 | 658529 |
| 9 | 5002953 |
| 10 | 173619 |
| 11 | 1616141 |
| 12 | 3107877 |
| 13 | 239756907 |
| 14 | 3244922897 |
| 15 | 3402714857 |
| 16 | 6606018008 |
| 17 | 51386679347 |
| 18 | 5504537914811 |
| 19 | 622652618545649 |
| 20 | 10572475711004 |
| 21 | 10931562934889 |
| 22 | 235301799307039 |
| 23 | 4608689892802861 |
| 24 | 9034390134407023 |
| 25 | 488936376609325 |
| 26 | 959905250448181 |
[3,5,87,156,913,1693,69769,658529,5002953,173619, 1616141,3107877,239756907,3244922897,3402714857, 6606018008,51386679347,5504537914811, 622652618545649,10572475711004,10931562934889, 235301799307039,4608689892802861,9034390134407023, 488936376609325,959905250448181] |