Littlewood Ultraflat
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Polynomial #596
ratio
0.9797680312
(Δ = 1.40e-12 at M = 2^15, ladder-fft/2)
degree
458
status
verified
content hash
698f77d98d8d2f0f9810fba7864890eadfb14c5acd9093d02e39037b260e6c2f
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 7.4199127
submitted
2026-08-25T19:50:53Z
Coefficients
(canonical symmetry representative)
+++++++++++++++++++++++++++-------------++++++++++++--------++++----++++-++---++--++-++++------+++++++-----++-+--+-++--++-+--+-++---++-++-+--+--++---++-+++--+++----++++--+++--+-+--+++--++-++-+---++-+--++--+---++-++----++--++-+--+---++++--++--+-++---++-+++--++----++-++++---++--+--+++++--+--++-+--+-++-++--+---++-++--+++----+++--+--++++----++--++++----++-+-++-+-+-++-+-+--+-+++--++--+--+++-+--+-++-+--+-+-+-++-+-+-+-+-+--+-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-
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