Littlewood Ultraflat
Polynomials
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Polynomial #606
ratio
0.9806906382
(Δ = 7.62e-12 at M = 2^15, ladder-fft/2)
degree
468
status
verified
content hash
ba2dddf36ff7554d85d89ab2c8a4b0a5e8648ae59f1c294a31f0620ca1ebaa96
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 7.51952
submitted
2026-08-25T19:50:57Z
Coefficients
(canonical symmetry representative)
+++++++++++++++++++++++++++++------------++-+++++++++++---------++++++------++++--+++----+----++++---++--++++---++----+++--+-++-+----+++--++--++--+++----+++++--+--++--+++++----++-++--++--+++--+++--+---+++++--++----+++--+-+-++-+--+-++--++--++++----++++++--+--+-++--+--+-++-+++--+--++-++--++--+++--+-++-+-++--++---++-+-++-+--+--++--++--++-++-+----++++--+--+-++--+--+-++--++-++-+--+-+++-+--+--++-+--+-+-++-+-+--+-+-+-+--+-+-+-+-+---++-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-
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