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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 11 |
| 5 | 21 |
| 6 | 42 |
| 7 | 83 |
| 8 | 163 |
| 9 | 323 |
| 10 | 635 |
| 11 | 1255 |
| 12 | 2473 |
| 13 | 4880 |
| 14 | 9625 |
| 15 | 18985 |
| 16 | 37451 |
| 17 | 73869 |
| 18 | 145715 |
| 19 | 287421 |
| 20 | 566954 |
| 21 | 1118331 |
| 22 | 2205947 |
| 23 | 4351307 |
| 24 | 8583091 |
| 25 | 16930447 |
| 26 | 33395857 |
| 27 | 65874464 |
| 28 | 129939569 |
| 29 | 256310161 |
| 30 | 505580371 |
| 31 | 997274197 |
| 32 | 1967156763 |
| 33 | 3880282533 |
| 34 | 7653987242 |
[1,1,3,5,11,21,42,83,163,323,635,1255,2473,4880, 9625,18985,37451,73869,145715,287421,566954, 1118331,2205947,4351307,8583091,16930447,33395857, 65874464,129939569,256310161,505580371,997274197, 1967156763,3880282533,7653987242] |