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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 4 |
| 4 | 7 |
| 5 | 9 |
| 6 | 12 |
| 7 | 14 |
| 8 | 16 |
| 9 | 17 |
| 10 | 23 |
| 11 | 34 |
| 12 | 36 |
| 13 | 38 |
| 14 | 43 |
| 15 | 77 |
| 16 | 88 |
| 17 | 216 |
| 18 | 350 |
| 19 | 979 |
| 20 | 24186 |
| 21 | 28678 |
| 22 | 134759 |
| 23 | 205829 |
| 24 | 374627 |
| 25 | 2200364 |
| 26 | 16625243 |
| 27 | 29451854 |
| 28 | 162613199 |
| 29 | 8078176309 |
| 30 | 9252290259 |
| 31 | 17556077280 |
| 32 | 49718535383 |
| 33 | 51616746477 |
| 34 | 54585993918 |
[0,2,4,7,9,12,14,16,17,23,34,36,38,43,77,88,216, 350,979,24186,28678,134759,205829,374627,2200364, 16625243,29451854,162613199,8078176309,9252290259, 17556077280,49718535383,51616746477,54585993918] |