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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 10 |
| 5 | 19 |
| 6 | 37 |
| 7 | 74 |
| 8 | 148 |
| 9 | 296 |
| 10 | 592 |
| 11 | 1183 |
| 12 | 2365 |
| 13 | 4730 |
| 14 | 9460 |
| 15 | 18919 |
| 16 | 37838 |
| 17 | 75675 |
| 18 | 151349 |
| 19 | 302698 |
| 20 | 605396 |
| 21 | 1210792 |
| 22 | 2421583 |
| 23 | 4843166 |
| 24 | 9686331 |
| 25 | 19372661 |
| 26 | 38745321 |
| 27 | 77490642 |
| 28 | 154981283 |
| 29 | 309962566 |
| 30 | 619925132 |
| 31 | 1239850263 |
| 32 | 2479700525 |
| 33 | 4959401050 |
| 34 | 9918802099 |
[1,2,3,5,10,19,37,74,148,296,592,1183,2365,4730, 9460,18919,37838,75675,151349,302698,605396, 1210792,2421583,4843166,9686331,19372661,38745321, 77490642,154981283,309962566,619925132,1239850263, 2479700525,4959401050,9918802099] |