Littlewood Ultraflat
Polynomials
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Polynomial #604
ratio
0.9803169382
(Δ = 9.23e-13 at M = 2^16, ladder-fft/2)
degree
466
status
verified
content hash
a913f50f635c4dfa0f1c59b5aadec11764bfee7a2eaaf7fbee06622996a35ef4
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 7.4114389
submitted
2026-08-25T19:50:56Z
Coefficients
(canonical symmetry representative)
+++++++++++++++++++++++++++------------++-+++++++++++---------++++++------++++--+++----+----++++---++--++++---++----+++--+-++-+----+++--++--++--+++----+++++--+--++--+++++----++-++--++--+++--+++--+---+++++--++----+++--+-+-++-+--+-++--++--++++----++++++--+--+-++--+--+-++-+++--+--++-++--++--+++--+-++-+-++--++---++-+-++-+--+--++--++--++-++-+----++++--+--+-++--+--+-++--++-++-+--+-+++-+--+--++-+--+-+-++-+-+--+-+-+-+--+-+-+-+-+---++-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-
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