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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 10 |
| 6 | 16 |
| 7 | 32 |
| 8 | 52 |
| 9 | 104 |
| 10 | 192 |
| 11 | 376 |
| 12 | 720 |
| 13 | 1440 |
| 14 | 2800 |
| 15 | 5600 |
| 16 | 11072 |
| 17 | 22112 |
| 18 | 43968 |
| 19 | 87936 |
| 20 | 175296 |
| 21 | 350592 |
| 22 | 700160 |
| 23 | 1400192 |
| 24 | 2798336 |
| 25 | 5596672 |
| 26 | 11188992 |
| 27 | 22377984 |
| 28 | 44747776 |
| 29 | 89495040 |
| 30 | 178973696 |
| 31 | 357947392 |
| 32 | 715860992 |
| 33 | 1431721984 |
| 34 | 2863378432 |
| 35 | 5726754816 |
[2,2,4,6,10,16,32,52,104,192,376,720,1440,2800, 5600,11072,22112,43968,87936,175296,350592,700160, 1400192,2798336,5596672,11188992,22377984, 44747776,89495040,178973696,357947392,715860992, 1431721984,2863378432,5726754816] |