User blog comment:KthulhuHimself/Plexation, TaN, and such/@comment-28124748-20150925131129/@comment-3427444-20151009061203

Actually, )n( = n&3&3&...&3 (n times) is correct if you solve the array of operators from right to left (i.e. )n( = n&(3&(3&...&3)...) (n times)). For example, Triplex = )3( = {{tritri,tritri,tritri},{tritri,tritri,tritri},{tritri,tritri,tritri}} = 3&{tritri,tritri,tritri} = 3&(3&tritri) = 3&(3&(3&3)).

The array of operator is normally solved from left to right, which if solved in this way creates very large numbers (if well-defined).