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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 324 |
| 3 | 2765 |
| 4 | 33461 |
| 5 | 408105 |
| 6 | 4988145 |
| 7 | 61239977 |
| 8 | 752660245 |
| 9 | 9254592049 |
| 10 | 113817204341 |
| 11 | 1399867249821 |
| 12 | 17217717400933 |
| 13 | 211770912156897 |
| 14 | 2604690694931325 |
| 15 | 32036472371696501 |
| 16 | 394032445053865405 |
[16,324,2765,33461,408105,4988145,61239977, 752660245,9254592049,113817204341,1399867249821, 17217717400933,211770912156897,2604690694931325, 32036472371696501,394032445053865405] |