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Low autocorrelation binary sequences beyond length 66
Find ±1 sequences of length 67 and beyond with lower autocorrelation energy than known, or prove optimality; optima are known only up to 66.
| 1 | { |
| 2 | "domain": "computer-science", |
| 3 | "topics": [ |
| 4 | "constraint-programming", |
| 5 | "coding-theory" |
| 6 | ], |
| 7 | "type": "construction", |
| 8 | "also": [ |
| 9 | "proof" |
| 10 | ], |
| 11 | "source": { |
| 12 | "key": "csplib", |
| 13 | "name": "CSPLib", |
| 14 | "url": "https://www.csplib.org/Problems/prob005/", |
| 15 | "id": "prob005", |
| 16 | "curator": "CSPLib editors", |
| 17 | "poser": "Toby Walsh", |
| 18 | "status": "open", |
| 19 | "as_of": "2026-10-20", |
| 20 | "catalog": "0521c19bbd38" |
| 21 | } |
| 22 | } |