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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | -2 |
| 4 | 4 |
| 5 | 0 |
| 6 | 0 |
| 7 | -8 |
| 8 | 16 |
| 9 | 0 |
| 10 | 0 |
| 11 | -32 |
| 12 | 64 |
| 13 | 0 |
| 14 | 0 |
| 15 | -128 |
| 16 | 256 |
| 17 | 0 |
| 18 | 0 |
| 19 | -512 |
| 20 | 1024 |
| 21 | 0 |
| 22 | 0 |
| 23 | -2048 |
| 24 | 4096 |
| 25 | 0 |
| 26 | 0 |
| 27 | -8192 |
| 28 | 16384 |
| 29 | 0 |
| 30 | 0 |
| 31 | -32768 |
| 32 | 65536 |
| 33 | 0 |
| 34 | 0 |
| 35 | -131072 |
| 36 | 262144 |
| 37 | 0 |
| 38 | 0 |
| 39 | -524288 |
| 40 | 1048576 |
| 41 | 0 |
| 42 | 0 |
| 43 | -2097152 |
| 44 | 4194304 |
| 45 | 0 |
| 46 | 0 |
| 47 | -8388608 |
| 48 | 16777216 |
| 49 | 0 |
| 50 | 0 |
| 51 | -33554432 |
| 52 | 67108864 |
| 53 | 0 |
| 54 | 0 |
| 55 | -134217728 |
[1,0,0,-2,4,0,0,-8,16,0,0,-32,64,0,0,-128,256,0,0, -512,1024,0,0,-2048,4096,0,0,-8192,16384,0,0, -32768,65536,0,0,-131072,262144,0,0,-524288, 1048576,0,0,-2097152,4194304,0,0,-8388608, 16777216,0,0,-33554432,67108864,0,0,-134217728] |