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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 10 |
| 4 | 33 |
| 5 | 106 |
| 6 | 333 |
| 7 | 1030 |
| 8 | 3153 |
| 9 | 9586 |
| 10 | 29013 |
| 11 | 87550 |
| 12 | 263673 |
| 13 | 793066 |
| 14 | 2383293 |
| 15 | 7158070 |
| 16 | 21490593 |
| 17 | 64504546 |
| 18 | 193579173 |
| 19 | 580868590 |
| 20 | 1742867913 |
| 21 | 5229128026 |
| 22 | 15688432653 |
| 23 | 47067395110 |
| 24 | 141206379633 |
| 25 | 423627527506 |
| 26 | 1270899359733 |
[1,3,10,33,106,333,1030,3153,9586,29013,87550, 263673,793066,2383293,7158070,21490593,64504546, 193579173,580868590,1742867913,5229128026, 15688432653,47067395110,141206379633,423627527506, 1270899359733] |