Notes. ^(a)The full contents of this table can be found in electronic form at Zenodo (see Section 5). All uncertainties correspond to 1σ. ^(b)Each frequency in the second column is assigned to four rotational transitions: two a- and two b-type ones. Labels α, β, γ, δ, ϵ, ζ, η, θ, ι, κ, λ, correspond to K_a = 0,1, K_a = 1,2, K_a = 2,3, K_a = 3,4, K_a = 4,5, K_a = 5,6, K_a = 6,7, K_a = 7,8, K_a = 8,9, K_a = 9,10, and K_a = 10,11, respectively, for each quartet of lines. As an example, the line at 31101.252 MHz is assigned to the quartet of lines 27_β, 26-26_β, 25, which means to 27_0, 26-26_0, 25, 27_0, 26-26_1, 25, 27_1, 26-26_0, 25 and 27_1, 26-26_1, 25 transitions. ^(c)Measured frequency assuming a v_LSR of 5.83 km s⁻¹ for TMC-1 (Cernicharo et al. 2020). ^(d)Integrated line intensity (in mK km s⁻¹). ^(e)Linewidth at half intensity derived by fitting a Gaussian function to the observed line profile (in km s⁻¹). ^(f)Antenna temperature (in milliKelvin).