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| n | a(n) |
|---|---|
| 1 | 57 |
| 2 | 820 |
| 3 | 11783 |
| 4 | 169343 |
| 5 | 2433709 |
| 6 | 34976109 |
| 7 | 502659771 |
| 8 | 7223984325 |
| 9 | 103819625131 |
| 10 | 1492045676385 |
| 11 | 21442962225379 |
| 12 | 308167930976177 |
| 13 | 4428841159329331 |
| 14 | 63649173203875529 |
| 15 | 914735278099257547 |
| 16 | 13146135085198398465 |
[57,820,11783,169343,2433709,34976109,502659771, 7223984325,103819625131,1492045676385, 21442962225379,308167930976177,4428841159329331, 63649173203875529,914735278099257547, 13146135085198398465] |