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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 8 |
| 4 | 17 |
| 5 | 34 |
| 6 | 62 |
| 7 | 123 |
| 8 | 243 |
| 9 | 471 |
| 10 | 924 |
| 11 | 1817 |
| 12 | 3558 |
| 13 | 6978 |
| 14 | 13697 |
| 15 | 26865 |
| 16 | 52699 |
| 17 | 103398 |
| 18 | 202847 |
| 19 | 397944 |
| 20 | 780720 |
| 21 | 1531657 |
| 22 | 3004865 |
| 23 | 5895113 |
| 24 | 11565346 |
| 25 | 22689467 |
| 26 | 44513380 |
| 27 | 87328672 |
| 28 | 171325871 |
| 29 | 336115955 |
| 30 | 659409701 |
| 31 | 1293664016 |
| 32 | 2537976953 |
| 33 | 4979134498 |
[3,5,8,17,34,62,123,243,471,924,1817,3558,6978, 13697,26865,52699,103398,202847,397944,780720, 1531657,3004865,5895113,11565346,22689467, 44513380,87328672,171325871,336115955,659409701, 1293664016,2537976953,4979134498] |