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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 9 |
| 7 | 13 |
| 8 | 22 |
| 9 | 34 |
| 10 | 58 |
| 11 | 95 |
| 12 | 168 |
| 13 | 280 |
| 14 | 492 |
| 15 | 853 |
| 16 | 1508 |
| 17 | 2648 |
| 18 | 4715 |
| 19 | 8350 |
| 20 | 14924 |
| 21 | 26643 |
| 22 | 47794 |
| 23 | 85779 |
| 24 | 154475 |
| 25 | 278323 |
| 26 | 502716 |
| 27 | 908913 |
| 28 | 1646206 |
| 29 | 2984547 |
| 30 | 5418653 |
| 31 | 9847190 |
| 32 | 17916001 |
| 33 | 32625618 |
| 34 | 59470540 |
| 35 | 108493150 |
| 36 | 198094483 |
| 37 | 361965239 |
| 38 | 661891580 |
| 39 | 1211162271 |
[1,2,3,4,6,9,13,22,34,58,95,168,280,492,853,1508, 2648,4715,8350,14924,26643,47794,85779,154475, 278323,502716,908913,1646206,2984547,5418653, 9847190,17916001,32625618,59470540,108493150, 198094483,361965239,661891580,1211162271] |