The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 15 |
| 8 | 24 |
| 9 | 38 |
| 10 | 61 |
| 11 | 99 |
| 12 | 161 |
| 13 | 261 |
| 14 | 422 |
| 15 | 682 |
| 16 | 1103 |
| 17 | 1785 |
| 18 | 2889 |
| 19 | 4675 |
| 20 | 7564 |
| 21 | 12238 |
| 22 | 19801 |
| 23 | 32039 |
| 24 | 51841 |
| 25 | 83881 |
| 26 | 135722 |
| 27 | 219602 |
| 28 | 355323 |
| 29 | 574925 |
| 30 | 930249 |
| 31 | 1505175 |
| 32 | 2435424 |
| 33 | 3940598 |
| 34 | 6376021 |
| 35 | 10316619 |
| 36 | 16692641 |
| 37 | 27009261 |
| 38 | 43701902 |
| 39 | 70711162 |
| 40 | 114413063 |
| 41 | 185124225 |
| 42 | 299537289 |
[1,1,2,2,3,5,9,15,24,38,61,99,161,261,422,682, 1103,1785,2889,4675,7564,12238,19801,32039,51841, 83881,135722,219602,355323,574925,930249,1505175, 2435424,3940598,6376021,10316619,16692641, 27009261,43701902,70711162,114413063,185124225, 299537289] |