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| n | a(n) |
|---|---|
| 1 | 69 |
| 2 | 88 |
| 3 | 94 |
| 4 | 129 |
| 5 | 201 |
| 6 | 345 |
| 7 | 633 |
| 8 | 1209 |
| 9 | 2361 |
| 10 | 4665 |
| 11 | 9273 |
| 12 | 18489 |
| 13 | 36921 |
| 14 | 73785 |
| 15 | 147513 |
| 16 | 294969 |
| 17 | 589881 |
| 18 | 1179705 |
| 19 | 2359353 |
| 20 | 4718649 |
| 21 | 9437241 |
| 22 | 18874425 |
| 23 | 37748793 |
| 24 | 75497529 |
| 25 | 150995001 |
| 26 | 301989945 |
| 27 | 603979833 |
| 28 | 1207959609 |
| 29 | 2415919161 |
| 30 | 4831838265 |
[69,88,94,129,201,345,633,1209,2361,4665,9273, 18489,36921,73785,147513,294969,589881,1179705, 2359353,4718649,9437241,18874425,37748793, 75497529,150995001,301989945,603979833,1207959609, 2415919161,4831838265] |