Littlewood Ultraflat
Polynomials
Recent
Submit
API
log in
Polynomial #590
ratio
0.9811104610
(Δ = 2.96e-13 at M = 2^15, ladder-fft/2)
degree
452
status
verified
content hash
294bdebe390d4a1bfc0a6298477e76e1da2ca1a71ce9c7757078dfc05274173c
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 7.6926451
submitted
2026-08-25T19:50:50Z
Coefficients
(canonical symmetry representative)
+++++++++++++++++++++++++++--------------+++++++++++--------++++----++++----+++--+++----+++----+++++--++--+++--+-+++--+-+--+++-++---++-++--++----+--+++---++-++--+--++--++-++--+----++++-++-----++--+--+--+-+++--+-----++++-+--+-+-----++++-+--+-+---++-++++---+++--++-+-++---+-++-+---++---++--++---++---++-++-++---+-++--++---++-++---+--+++++--+----++-++--++--+-+--+-++-++-+--+--++-++-+--+-++-+--+-++-+-+-+--+-+-+-+-+--+-+-+-+-+-+-++-+-+-+-+-+-+-+-+-+-+-+-+-+
download sign string
·
canonical blob
·
JSON
← leaderboard