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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 4 |
| 3 | 3 |
| 4 | 16 |
| 5 | 15 |
| 6 | 64 |
| 7 | 63 |
| 8 | 288 |
| 9 | 31 |
| 10 | 1920 |
| 11 | 127 |
| 12 | 7680 |
| 13 | 2559 |
| 14 | 16384 |
| 15 | 16383 |
| 16 | 75264 |
| 17 | 511 |
| 18 | 522240 |
| 19 | 206847 |
| 20 | 1048576 |
| 21 | 1048575 |
| 22 | 5070848 |
| 23 | 73727 |
| 24 | 33193984 |
| 25 | 3047423 |
| 26 | 120061952 |
| 27 | 5767167 |
| 28 | 511115264 |
| 29 | 139526143 |
| 30 | 1179385856 |
| 31 | 537133055 |
| 32 | 5904531456 |
| 33 | 1255145471 |
| 34 | 25769803776 |
[1,0,4,3,16,15,64,63,288,31,1920,127,7680,2559, 16384,16383,75264,511,522240,206847,1048576, 1048575,5070848,73727,33193984,3047423,120061952, 5767167,511115264,139526143,1179385856,537133055, 5904531456,1255145471,25769803776] |