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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 10 |
| 4 | 31 |
| 5 | 306 |
| 6 | 9488 |
| 7 | 9489 |
| 8 | 29808 |
| 9 | 29809 |
| 10 | 93648 |
| 11 | 294204 |
| 12 | 9122171 |
| 13 | 28658146 |
| 14 | 888582403 |
| 15 | 8769956796 |
| 16 | 27551631843 |
| 17 | 86556004192 |
| 18 | 854273519914 |
| 19 | 2683779414318 |
| 20 | 8431341691876 |
| 21 | 26487841119103 |
| 22 | 26487841119104 |
[2,3,10,31,306,9488,9489,29808,29809,93648,294204, 9122171,28658146,888582403,8769956796,27551631843, 86556004192,854273519914,2683779414318, 8431341691876,26487841119103,26487841119104] |