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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 16 |
| 5 | 30 |
| 6 | 56 |
| 7 | 104 |
| 8 | 192 |
| 9 | 358 |
| 10 | 670 |
| 11 | 1260 |
| 12 | 2384 |
| 13 | 4524 |
| 14 | 8616 |
| 15 | 16460 |
| 16 | 31520 |
| 17 | 60518 |
| 18 | 116458 |
| 19 | 224582 |
| 20 | 433990 |
| 21 | 840208 |
| 22 | 1629480 |
| 23 | 3165272 |
| 24 | 6157584 |
| 25 | 11995072 |
| 26 | 23395948 |
| 27 | 45685760 |
| 28 | 89307256 |
| 29 | 174752084 |
| 30 | 342259964 |
| 31 | 670902048 |
| 32 | 1316147680 |
| 33 | 2583857838 |
[1,2,4,8,16,30,56,104,192,358,670,1260,2384,4524, 8616,16460,31520,60518,116458,224582,433990, 840208,1629480,3165272,6157584,11995072,23395948, 45685760,89307256,174752084,342259964,670902048, 1316147680,2583857838] |