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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 16 |
| 5 | 24 |
| 6 | 48 |
| 7 | 80 |
| 8 | 160 |
| 9 | 320 |
| 10 | 640 |
| 11 | 1280 |
| 12 | 2560 |
| 13 | 3840 |
| 14 | 7680 |
| 15 | 15360 |
| 16 | 30720 |
| 17 | 61440 |
| 18 | 122880 |
| 19 | 184320 |
| 20 | 368640 |
| 21 | 737280 |
| 22 | 1474560 |
| 23 | 2949120 |
| 24 | 5898240 |
| 25 | 11796480 |
| 26 | 23592960 |
| 27 | 47185920 |
| 28 | 94371840 |
| 29 | 188743680 |
| 30 | 377487360 |
| 31 | 566231040 |
[2,4,8,16,24,48,80,160,320,640,1280,2560,3840, 7680,15360,30720,61440,122880,184320,368640, 737280,1474560,2949120,5898240,11796480,23592960, 47185920,94371840,188743680,377487360,566231040] |