Littlewood Ultraflat
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Polynomial #636
ratio
0.9791375435
(Δ = 7.43e-12 at M = 2^16, ladder-fft/2)
degree
498
status
verified
content hash
b676619102aa7fabd8db35b4f1dfad85167f7329d64351fd3640ac0b20d2b79d
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 7.3560118
submitted
2026-08-25T19:51:11Z
Coefficients
(canonical symmetry representative)
++++++++++++++++++++++++++++++---------------++++++++++++--------++++++------++++---++++----+++--+----++++-++-++----++-+++--++--++--++-++-+--++++----+--+++++-----+--+++---++-++---++--++--+++--+-++---+++--+-+--+++--++++--+--+--+++----++-+---+--+-++--++--++----+++-++++--+-++-++---+++--+-++--+--+++++--+--+--++++--+--++--++--+--+++--+--+--+++-+-++-+-++---+-++-+--++++---++--++--++--+---++-+--+++---+-++-+---++-++-+--+-++-++-+--+-+-++-+-+--+-+-+-++-+-+-+-+-+--+-+-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-+
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