PROP instances with size n=24 in Yang et al. (2019)

As explained in the paper: Instances P24_a, P24_b, P24_c, P24_d, and P24_e are characterized by {n=24; L_n (5, 14); NUG(30-6)}. We consider {P24_a, t}, {P24_b, t},..., {P24_e, t}, for each t in { floor(n/2), floor(n/3), floor(n/4), floor(n/5)}, which yields 20 PROP instances. Reference Yang, X., Cheng, W., Smith, A. E., & Amaral, A. R. S. (2019). An improved model for the parallel row ordering problem. Journal of the Operational Research Society, 71(3), 475–490. https://doi.org/10.1080/01605682.2018.1556570