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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 7 |
| 4 | 11 |
| 5 | 19 |
| 6 | 33 |
| 7 | 57 |
| 8 | 97 |
| 9 | 166 |
| 10 | 285 |
| 11 | 489 |
| 12 | 838 |
| 13 | 1436 |
| 14 | 2462 |
| 15 | 4221 |
| 16 | 7236 |
| 17 | 12404 |
| 18 | 21264 |
| 19 | 36453 |
| 20 | 62491 |
| 21 | 107127 |
| 22 | 183646 |
| 23 | 314822 |
| 24 | 539695 |
| 25 | 925191 |
| 26 | 1586041 |
| 27 | 2718927 |
| 28 | 4661017 |
| 29 | 7990313 |
| 30 | 13697676 |
| 31 | 23481725 |
| 32 | 40254377 |
| 33 | 69007488 |
| 34 | 118298524 |
| 35 | 202797424 |
[2,4,7,11,19,33,57,97,166,285,489,838,1436,2462, 4221,7236,12404,21264,36453,62491,107127,183646, 314822,539695,925191,1586041,2718927,4661017, 7990313,13697676,23481725,40254377,69007488, 118298524,202797424] |