Comparison of echelle diagram, inertia ratios, and dν_m−p from observations and models without diffusion for KIC 6442183. The color-filled symbols denote the observed frequencies, and the empty symbols are the corrected theoretical frequencies. The squares denote the l = 2 modes, while the circles show the l = 0, the triangle the l = 1, and the five-pointed star the l = 3 modes. We did not plot the frequency error bars since these are smaller than the symbol signs.