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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 19 |
| 4 | 487 |
| 5 | 721 |
| 6 | 18493 |
| 7 | 27379 |
| 8 | 702247 |
| 9 | 1039681 |
| 10 | 26666893 |
| 11 | 39480499 |
| 12 | 1012639687 |
| 13 | 1499219281 |
| 14 | 38453641213 |
| 15 | 56930852179 |
| 16 | 1460225726407 |
| 17 | 2161873163521 |
| 18 | 55450123962253 |
| 19 | 82094249361619 |
| 20 | 2105644484839207 |
| 21 | 3117419602578001 |
| 22 | 79959040299927613 |
| 23 | 118379850648602419 |
| 24 | 3036337886912410087 |
[1,13,19,487,721,18493,27379,702247,1039681, 26666893,39480499,1012639687,1499219281, 38453641213,56930852179,1460225726407, 2161873163521,55450123962253,82094249361619, 2105644484839207,3117419602578001, 79959040299927613,118379850648602419, 3036337886912410087] |