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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 8 |
| 4 | 15 |
| 5 | 28 |
| 6 | 51 |
| 7 | 98 |
| 8 | 195 |
| 9 | 388 |
| 10 | 771 |
| 11 | 1540 |
| 12 | 3071 |
| 13 | 6138 |
| 14 | 12271 |
| 15 | 24540 |
| 16 | 49073 |
| 17 | 98142 |
| 18 | 196271 |
| 19 | 392518 |
| 20 | 785021 |
| 21 | 1570038 |
| 22 | 3140045 |
| 23 | 6280086 |
| 24 | 12560153 |
| 25 | 25120300 |
| 26 | 50240589 |
| 27 | 100481176 |
| 28 | 200962343 |
| 29 | 401924670 |
| 30 | 803849309 |
| 31 | 1607698612 |
| 32 | 3215397195 |
| 33 | 6430794388 |
| 34 | 12861588761 |
| 35 | 25723177510 |
[3,5,8,15,28,51,98,195,388,771,1540,3071,6138, 12271,24540,49073,98142,196271,392518,785021, 1570038,3140045,6280086,12560153,25120300, 50240589,100481176,200962343,401924670,803849309, 1607698612,3215397195,6430794388,12861588761, 25723177510] |