The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 7 |
| 6 | 10 |
| 7 | 13 |
| 8 | 18 |
| 9 | 24 |
| 10 | 34 |
| 11 | 44 |
| 12 | 57 |
| 13 | 76 |
| 14 | 103 |
| 15 | 133 |
| 16 | 174 |
| 17 | 232 |
| 18 | 305 |
| 19 | 398 |
| 20 | 530 |
| 21 | 691 |
| 22 | 903 |
| 23 | 1172 |
| 24 | 1533 |
| 25 | 1982 |
| 26 | 2581 |
| 27 | 3370 |
| 28 | 4404 |
| 29 | 5737 |
| 30 | 7477 |
| 31 | 9741 |
| 32 | 12687 |
| 33 | 16546 |
| 34 | 21586 |
| 35 | 28091 |
| 36 | 36586 |
| 37 | 47625 |
| 38 | 62034 |
| 39 | 80741 |
| 40 | 105111 |
| 41 | 136859 |
| 42 | 178252 |
[1,2,3,5,7,10,13,18,24,34,44,57,76,103,133,174, 232,305,398,530,691,903,1172,1533,1982,2581,3370, 4404,5737,7477,9741,12687,16546,21586,28091,36586, 47625,62034,80741,105111,136859,178252] |