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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 7 |
| 4 | 14 |
| 5 | 22 |
| 6 | 44 |
| 7 | 67 |
| 8 | 134 |
| 9 | 202 |
| 10 | 404 |
| 11 | 607 |
| 12 | 1214 |
| 13 | 1822 |
| 14 | 3644 |
| 15 | 5467 |
| 16 | 10934 |
| 17 | 16402 |
| 18 | 32804 |
| 19 | 49207 |
| 20 | 98414 |
| 21 | 147622 |
| 22 | 295244 |
| 23 | 442867 |
| 24 | 885734 |
| 25 | 1328602 |
| 26 | 2657204 |
| 27 | 3985807 |
| 28 | 7971614 |
| 29 | 11957422 |
| 30 | 23914844 |
| 31 | 35872267 |
| 32 | 71744534 |
| 33 | 107616802 |
| 34 | 215233604 |
[1,2,4,7,14,22,44,67,134,202,404,607,1214,1822, 3644,5467,10934,16402,32804,49207,98414,147622, 295244,442867,885734,1328602,2657204,3985807, 7971614,11957422,23914844,35872267,71744534, 107616802,215233604] |