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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 19 |
| 3 | 57 |
| 4 | 127 |
| 5 | 213 |
| 6 | 363 |
| 7 | 613 |
| 8 | 1055 |
| 9 | 1815 |
| 10 | 3159 |
| 11 | 5503 |
| 12 | 9609 |
| 13 | 16773 |
| 14 | 29281 |
| 15 | 51125 |
| 16 | 89277 |
| 17 | 155899 |
| 18 | 272315 |
| 19 | 475793 |
| 20 | 831415 |
| 21 | 1452927 |
| 22 | 2539213 |
| 23 | 4437877 |
| 24 | 7756367 |
| 25 | 13556573 |
| 26 | 23694815 |
| 27 | 41415935 |
| 28 | 72391801 |
| 29 | 126536987 |
| 30 | 221182305 |
| 31 | 386622379 |
[5,19,57,127,213,363,613,1055,1815,3159,5503,9609, 16773,29281,51125,89277,155899,272315,475793, 831415,1452927,2539213,4437877,7756367,13556573, 23694815,41415935,72391801,126536987,221182305, 386622379] |