Littlewood Ultraflat
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Polynomial #600
ratio
0.9793414330
(Δ = 1.69e-12 at M = 2^15, ladder-fft/2)
degree
462
status
verified
content hash
0d2a48e1f795345157a86897c48145dc146ee24bcc35b8db7d54864188a6cf0d
submitter
David Renshaw
note
Best-known LABS sequence from Psenicnik, Mlinaric, Brest, and Boskovic, Dual-Step Optimization for Binary Sequences with High Merit Factors (2025), arXiv:2409.07222; merit factor 7.3884676
submitted
2026-08-25T19:50:55Z
Coefficients
(canonical symmetry representative)
-++++++++++++++++++++++++++++-------------++++++++++++--------++++----++++-++---++--++-++++------+++++++-----++-+--+-++--++-+--+-++---++-++-+-++--++---++-+++--+++----++++--+++--+-+--+++--++-++-+---++-+--++--+---++-++----++--++-+--+---++++--++--+-++---++-+++--++----++-++++---++--+--+++++--+--++-+--+-++-++--+---++-++--+++----+++--+--++++----++--++++----++-+-++-+-+-++-+-+--+-+++--++--+--+++-+--+-++-+--+-+-+-++-+-+-+-+-+--+-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-++
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