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| n | a(n) |
|---|---|
| 1 | 19 |
| 2 | 76 |
| 3 | 190 |
| 4 | 418 |
| 5 | 874 |
| 6 | 1786 |
| 7 | 3610 |
| 8 | 7258 |
| 9 | 14554 |
| 10 | 29146 |
| 11 | 58330 |
| 12 | 116698 |
| 13 | 233434 |
| 14 | 466906 |
| 15 | 933850 |
| 16 | 1867738 |
| 17 | 3735514 |
| 18 | 7471066 |
| 19 | 14942170 |
| 20 | 29884378 |
| 21 | 59768794 |
| 22 | 119537626 |
| 23 | 239075290 |
| 24 | 478150618 |
| 25 | 956301274 |
| 26 | 1912602586 |
| 27 | 3825205210 |
| 28 | 7650410458 |
| 29 | 15300820954 |
| 30 | 30601641946 |
| 31 | 61203283930 |
| 32 | 122406567898 |
| 33 | 244813135834 |
| 34 | 489626271706 |
[19,76,190,418,874,1786,3610,7258,14554,29146, 58330,116698,233434,466906,933850,1867738,3735514, 7471066,14942170,29884378,59768794,119537626, 239075290,478150618,956301274,1912602586, 3825205210,7650410458,15300820954,30601641946, 61203283930,122406567898,244813135834, 489626271706] |