Littlewood Ultraflat
Polynomials
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Polynomial #608
ratio
0.9806543458
(Δ = 4.35e-11 at M = 2^16, ladder-fft/2)
degree
470
status
verified
content hash
34d08245d54e7eb87de507aeeb8a385e57d352a1c6b340e6032cde05c85a4d1a
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 7.5543486
submitted
2026-08-25T19:50:58Z
Coefficients
(canonical symmetry representative)
+++++++++++++++++++++++++++++------------++-+++++++++++---------++++++------++++--+++----+----++++---++--++++---++----+++--+-++-+----+++--++--++--+++----+++++--+--++--+++++----++-++--++--+++--+++--+---++++---++----+++--+-+-++-+--+-++--++--++++----++++++--+--+-++--+--+-++-+++--+--++-++--++--+++--+-++-+-++--++---++-+-++-+--+--++--++--++-++-+----++++--+--+-++--+--+-++--++-++-+--+-+++-+--+--++-+--+-+-++-+-+--+-+-+-+--+-+-+-+-+---++-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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