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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 15 |
| 8 | 25 |
| 9 | 43 |
| 10 | 70 |
| 11 | 113 |
| 12 | 181 |
| 13 | 283 |
| 14 | 436 |
| 15 | 666 |
| 16 | 999 |
| 17 | 1483 |
| 18 | 2179 |
| 19 | 3166 |
| 20 | 4556 |
| 21 | 6504 |
| 22 | 9200 |
| 23 | 12918 |
| 24 | 18011 |
| 25 | 24938 |
| 26 | 34308 |
| 27 | 46928 |
| 28 | 63815 |
| 29 | 86324 |
| 30 | 116187 |
| 31 | 155626 |
| 32 | 207502 |
| 33 | 275491 |
| 34 | 364226 |
| 35 | 479660 |
| 36 | 629305 |
| 37 | 822655 |
| 38 | 1071694 |
| 39 | 1391531 |
| 40 | 1801041 |
| 41 | 2323958 |
| 42 | 2989883 |
[1,1,2,3,5,9,15,25,43,70,113,181,283,436,666,999, 1483,2179,3166,4556,6504,9200,12918,18011,24938, 34308,46928,63815,86324,116187,155626,207502, 275491,364226,479660,629305,822655,1071694, 1391531,1801041,2323958,2989883] |