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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 298 |
| 3 | 1385 |
| 4 | 7629 |
| 5 | 45143 |
| 6 | 261255 |
| 7 | 1504330 |
| 8 | 8713831 |
| 9 | 50485951 |
| 10 | 292152782 |
| 11 | 1691331669 |
| 12 | 9794763558 |
| 13 | 56711243230 |
| 14 | 328354678538 |
| 15 | 1901285519419 |
| 16 | 11008858736618 |
| 17 | 63743159008157 |
| 18 | 369087907885705 |
| 19 | 2137103028020937 |
[16,298,1385,7629,45143,261255,1504330,8713831, 50485951,292152782,1691331669,9794763558, 56711243230,328354678538,1901285519419, 11008858736618,63743159008157,369087907885705, 2137103028020937] |