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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 37 |
| 4 | 517 |
| 5 | 10001 |
| 6 | 248873 |
| 7 | 7529537 |
| 8 | 268435973 |
| 9 | 11019960613 |
| 10 | 512000010005 |
| 11 | 26559922791425 |
| 12 | 1521681143418409 |
| 13 | 95428956661682177 |
| 14 | 6502111422505477189 |
| 15 | 478296900000000010037 |
| 16 | 37778931862957430145541 |
| 17 | 3189059870763703892770817 |
[1,5,37,517,10001,248873,7529537,268435973, 11019960613,512000010005,26559922791425, 1521681143418409,95428956661682177, 6502111422505477189,478296900000000010037, 37778931862957430145541,3189059870763703892770817] |