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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 14 |
| 5 | 30 |
| 6 | 62 |
| 7 | 117 |
| 8 | 217 |
| 9 | 467 |
| 10 | 979 |
| 11 | 1845 |
| 12 | 3897 |
| 13 | 7793 |
| 14 | 15985 |
| 15 | 31943 |
| 16 | 64711 |
| 17 | 129265 |
| 18 | 258529 |
| 19 | 520673 |
| 20 | 849583 |
| 21 | 2082753 |
| 22 | 4151813 |
| 23 | 8357825 |
| 24 | 13264529 |
| 25 | 33528945 |
| 26 | 66985857 |
| 27 | 134090689 |
| 28 | 268181377 |
| 29 | 536616833 |
| 30 | 1073496033 |
| 31 | 2146467585 |
| 32 | 4042815511 |
| 33 | 8587869953 |
| 34 | 17178943969 |
[1,3,6,14,30,62,117,217,467,979,1845,3897,7793, 15985,31943,64711,129265,258529,520673,849583, 2082753,4151813,8357825,13264529,33528945, 66985857,134090689,268181377,536616833,1073496033, 2146467585,4042815511,8587869953,17178943969] |