The triakulus is equal to \(3\&3\&3\) or \(\{ 3,3 /2 \}\) or \(\{L,1\}_{3,3}\) using the array of operator and BEAF. Since the array of operator solves from left to right, \(3\&3\&3 = \{ 3,3,3 \} \& 3 \), a pentational array. This is the smallest number named by Jonathan Bowers which lies in the pentational-array range.