On power values of pyramidal numbers, II

Andrej Dujella, Kálmán Győry, Philippe Michaud-Jacobs +1

For $m\ge 3$, we define the $m$th order pyramidal number by \[ \mathrm{Pyr}_m(x) = \frac{1}{6} x(x+1)((m-2)x+5-m). \] In a previous paper, written by the first-, second-, and fou…