The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 8 |
| 7 | 11 |
| 8 | 21 |
| 9 | 29 |
| 10 | 55 |
| 11 | 76 |
| 12 | 144 |
| 13 | 199 |
| 14 | 377 |
| 15 | 521 |
| 16 | 987 |
| 17 | 1364 |
| 18 | 2584 |
| 19 | 3571 |
| 20 | 6765 |
| 21 | 9349 |
| 22 | 17711 |
| 23 | 24476 |
| 24 | 46368 |
| 25 | 64079 |
| 26 | 121393 |
| 27 | 167761 |
| 28 | 317811 |
| 29 | 439204 |
| 30 | 832040 |
| 31 | 1149851 |
| 32 | 2178309 |
| 33 | 3010349 |
| 34 | 5702887 |
| 35 | 7881196 |
| 36 | 14930352 |
| 37 | 20633239 |
| 38 | 39088169 |
| 39 | 54018521 |
| 40 | 102334155 |
[1,2,3,4,5,8,11,21,29,55,76,144,199,377,521,987, 1364,2584,3571,6765,9349,17711,24476,46368,64079, 121393,167761,317811,439204,832040,1149851, 2178309,3010349,5702887,7881196,14930352,20633239, 39088169,54018521,102334155] |