Littlewood Ultraflat
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Polynomial #599
ratio
0.9797414951
(Δ = 1.06e-13 at M = 2^15, ladder-fft/2)
degree
461
status
verified
content hash
e6767c49ec421341699e32c66ef8601463db79b17af35f3773b2205b0da7f95f
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 7.5098163
submitted
2026-08-25T19:50:54Z
Coefficients
(canonical symmetry representative)
++++++++++++++++++++++++++++-------------++++++++++++--------++++----++++-++---++--++-++++------+++++++-----++-+--+-++--++-+--+-++---++-++-+-++--++---++-+++--+++----++++--+++--+-+--+++--++-++-+---++-+--++--+---++-++----++--++-+--+---++++--++--+-++---++-+++--++----++-++++---++--+--+++++--+--++-+--+-++-++--+---++-++--+++----+++--+--++++----++--++++----++-+-++-+-+-++-+-+--+-+++--++--+--+++-+--+-++-+--+-+-+-++-+-+-+-+-+--+-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-++
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