Littlewood Ultraflat
Polynomials
Recent
Submit
API
log in
Polynomial #612
ratio
0.9806983034
(Δ = 1.24e-11 at M = 2^15, ladder-fft/2)
degree
474
status
verified
content hash
48f1742dcf3f4033f1d72cd5ca7264d0941d4dfd444066cb946581362d9c0084
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 7.3748121
submitted
2026-08-25T19:51:00Z
Coefficients
(canonical symmetry representative)
++++++++++++++++++++++++++++++---------------+++++++++++---------++++++----+-++++-++++---++-++-----++++--++-++---+++--+-++++---++-++---+++--+--+++----+--+++++----++--+--+-+++--+---++---+++--++----++-++--++++----++-++-++---+++--+--++--++-++---++--++---++-++-++---+++--+-++-+--++---++-+--++--+--+--++-+++--+----+++--++-+--+-+--+++-+--+--+++--+--+--+++--+--+-++++--+--+--+++--++-+--+-+--+++--+--+-+++-+----+-++-+-+--+-+-+-+--+-+-+-+-+--+-+-+-+-+-+-+--+-+-+-+-+-+-+-+-+-+-+-+-+-+
download sign string
·
canonical blob
·
JSON
← leaderboard