Four statistics for runs and antiruns of prime, nonprime, squarefree, and nonsquarefree numbers by Gus Wiseman, Jun 05 2024 prime --------------------------------- - lengths of runs are A251092 - lengths of antiruns are A027833 - minima of runs are A025584 - minima of antiruns are A006512 - maxima of runs are A067774 - maxima of antiruns are A001359 - sums of runs are A373406 - sums of antiruns are A373405 nonprime --------------------------------- - lengths of runs are A176246 - lengths of antiruns are A373403 - minima of runs are A008864 - minima of antiruns are A005381 - maxima of runs are A006093 - maxima of antiruns are A068780 - sums of runs are A054265 - sums of antiruns are A373404 squarefree --------------------------------- - lengths of runs are A120992 - lengths of antiruns are A373127 - minima of runs are A072284 - minima of antiruns are A373408 - maxima of runs are A373415 - maxima of antiruns are A007674 - sums of runs are A373413 - sums of antiruns are A373411 nonsquarefree --------------------------------- - lengths of runs are A053797 - lengths of antiruns are A373409 - minima of runs are A053806 - minima of antiruns are A373410 - maxima of runs are A373416 - maxima of antiruns are A068781 - sums of runs are A373414 - sums of antiruns are A373412 Latest version: https://docs.google.com/document/d/e/2PACX-1vQOZkHMMW25Y4dFU_0osm1SIiasqxQwOo3_omxcatWmOiJf3uxe_SDuz5kMK7b9a10uKOEyj6AEx2nO/pub