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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -2 |
| 3 | -8 |
| 4 | -8 |
| 5 | 16 |
| 6 | 64 |
| 7 | 64 |
| 8 | -128 |
| 9 | -512 |
| 10 | -512 |
| 11 | 1024 |
| 12 | 4096 |
| 13 | 4096 |
| 14 | -8192 |
| 15 | -32768 |
| 16 | -32768 |
| 17 | 65536 |
| 18 | 262144 |
| 19 | 262144 |
| 20 | -524288 |
| 21 | -2097152 |
| 22 | -2097152 |
| 23 | 4194304 |
| 24 | 16777216 |
| 25 | 16777216 |
| 26 | -33554432 |
| 27 | -134217728 |
| 28 | -134217728 |
| 29 | 268435456 |
| 30 | 1073741824 |
| 31 | 1073741824 |
| 32 | -2147483648 |
| 33 | -8589934592 |
[1,1,-2,-8,-8,16,64,64,-128,-512,-512,1024,4096, 4096,-8192,-32768,-32768,65536,262144,262144, -524288,-2097152,-2097152,4194304,16777216, 16777216,-33554432,-134217728,-134217728, 268435456,1073741824,1073741824,-2147483648, -8589934592] |