The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 7 |
| 5 | 12 |
| 6 | 19 |
| 7 | 31 |
| 8 | 52 |
| 9 | 86 |
| 10 | 141 |
| 11 | 233 |
| 12 | 386 |
| 13 | 639 |
| 14 | 1057 |
| 15 | 1749 |
| 16 | 2896 |
| 17 | 4795 |
| 18 | 7937 |
| 19 | 13138 |
| 20 | 21751 |
| 21 | 36010 |
| 22 | 59613 |
| 23 | 98688 |
| 24 | 163380 |
| 25 | 270479 |
| 26 | 447779 |
| 27 | 741300 |
| 28 | 1227231 |
| 29 | 2031697 |
| 30 | 3363494 |
| 31 | 5568295 |
| 32 | 9218373 |
| 33 | 15261119 |
| 34 | 25264942 |
| 35 | 41826373 |
| 36 | 69244006 |
| 37 | 114634194 |
| 38 | 189778123 |
[1,2,3,4,7,12,19,31,52,86,141,233,386,639,1057, 1749,2896,4795,7937,13138,21751,36010,59613,98688, 163380,270479,447779,741300,1227231,2031697, 3363494,5568295,9218373,15261119,25264942, 41826373,69244006,114634194,189778123] |