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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 12 |
| 6 | 22 |
| 7 | 36 |
| 8 | 61 |
| 9 | 101 |
| 10 | 166 |
| 11 | 267 |
| 12 | 433 |
| 13 | 686 |
| 14 | 1088 |
| 15 | 1709 |
| 16 | 2671 |
| 17 | 4140 |
| 18 | 6403 |
| 19 | 9824 |
| 20 | 15028 |
| 21 | 22864 |
| 22 | 34657 |
| 23 | 52288 |
| 24 | 78646 |
| 25 | 117784 |
| 26 | 175865 |
| 27 | 261657 |
| 28 | 388145 |
| 29 | 573936 |
| 30 | 846377 |
| 31 | 1244475 |
| 32 | 1825170 |
| 33 | 2669776 |
| 34 | 3895833 |
| 35 | 5671127 |
| 36 | 8236945 |
| 37 | 11936594 |
| 38 | 17261557 |
| 39 | 24909756 |
[1,1,2,4,7,12,22,36,61,101,166,267,433,686,1088, 1709,2671,4140,6403,9824,15028,22864,34657,52288, 78646,117784,175865,261657,388145,573936,846377, 1244475,1825170,2669776,3895833,5671127,8236945, 11936594,17261557,24909756] |