The dataset offers sequences that are optimized for nonlinearity estimation. The sequences are compliant to IEEE 802.11 standards and are given as binary phase shift keying (BPSK) modulated orthogonal frequency division multiplexing (OFDM) symbol in frequency domain. The sequences are given for various numbers of total subcarriers and positions of occupied subcarriers that match to the training fields defined in the IEEE 802.11 standards. All sequences are normalized to unit power and comply to a maximum peak-to-average-power (PAPR) constraint of 13.05 dB. For each sequence format, one CSV file is given. The columns hold optimized sequences for nonlinearity estimation with orthonormal Laguerre polynomials for each estimation order from P=3 up to P=10.