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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 9 |
| 6 | 21 |
| 7 | 43 |
| 8 | 86 |
| 9 | 170 |
| 10 | 340 |
| 11 | 681 |
| 12 | 1365 |
| 13 | 2731 |
| 14 | 5462 |
| 15 | 10922 |
| 16 | 21844 |
| 17 | 43689 |
| 18 | 87381 |
| 19 | 174763 |
| 20 | 349526 |
| 21 | 699050 |
| 22 | 1398100 |
| 23 | 2796201 |
| 24 | 5592405 |
| 25 | 11184811 |
| 26 | 22369622 |
| 27 | 44739242 |
| 28 | 89478484 |
| 29 | 178956969 |
| 30 | 357913941 |
| 31 | 715827883 |
| 32 | 1431655766 |
| 33 | 2863311530 |
| 34 | 5726623060 |
| 35 | 11453246121 |
[0,1,2,2,4,9,21,43,86,170,340,681,1365,2731,5462, 10922,21844,43689,87381,174763,349526,699050, 1398100,2796201,5592405,11184811,22369622, 44739242,89478484,178956969,357913941,715827883, 1431655766,2863311530,5726623060,11453246121] |