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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 8 |
| 3 | 14 |
| 4 | 32 |
| 5 | 42 |
| 6 | 104 |
| 7 | 142 |
| 8 | 320 |
| 9 | 554 |
| 10 | 1128 |
| 11 | 2070 |
| 12 | 4352 |
| 13 | 8218 |
| 14 | 16696 |
| 15 | 32934 |
| 16 | 66176 |
| 17 | 131106 |
| 18 | 263480 |
| 19 | 524326 |
| 20 | 1050912 |
| 21 | 2097634 |
| 22 | 4198488 |
| 23 | 8388654 |
| 24 | 16786688 |
| 25 | 33554642 |
| 26 | 67125352 |
| 27 | 134219390 |
| 28 | 268468960 |
| 29 | 536870970 |
| 30 | 1073811144 |
| 31 | 2147483710 |
| 32 | 4295099648 |
| 33 | 8589940890 |
[0,2,8,14,32,42,104,142,320,554,1128,2070,4352, 8218,16696,32934,66176,131106,263480,524326, 1050912,2097634,4198488,8388654,16786688,33554642, 67125352,134219390,268468960,536870970,1073811144, 2147483710,4295099648,8589940890] |