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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 8 |
| 6 | 13 |
| 7 | 22 |
| 8 | 39 |
| 9 | 72 |
| 10 | 137 |
| 11 | 266 |
| 12 | 523 |
| 13 | 1036 |
| 14 | 2061 |
| 15 | 4110 |
| 16 | 8207 |
| 17 | 16400 |
| 18 | 32785 |
| 19 | 65554 |
| 20 | 131091 |
| 21 | 262164 |
| 22 | 524309 |
| 23 | 1048598 |
| 24 | 2097175 |
| 25 | 4194328 |
| 26 | 8388633 |
| 27 | 16777242 |
[1,2,3,5,8,13,22,39,72,137,266,523,1036,2061,4110, 8207,16400,32785,65554,131091,262164,524309, 1048598,2097175,4194328,8388633,16777242] |