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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 14 |
| 6 | 24 |
| 7 | 40 |
| 8 | 66 |
| 9 | 106 |
| 10 | 170 |
| 11 | 270 |
| 12 | 426 |
| 13 | 668 |
| 14 | 1044 |
| 15 | 1626 |
| 16 | 2526 |
| 17 | 3914 |
| 18 | 6054 |
| 19 | 9352 |
| 20 | 14428 |
| 21 | 22236 |
| 22 | 34244 |
| 23 | 52704 |
| 24 | 81070 |
| 25 | 12465 |
| 26 | 191594 |
| 27 | 294410 |
| 28 | 452298 |
| 29 | 694734 |
| 30 | 1066968 |
| 31 | 1638456 |
[1,2,4,8,14,24,40,66,106,170,270,426,668,1044, 1626,2526,3914,6054,9352,14428,22236,34244,52704, 81070,12465,191594,294410,452298,694734,1066968, 1638456] |