User blog comment:Wythagoras/Dollar function: final version/@comment-5029411-20131113214906

The extension of extended bracket notation is linear array notation.

And 0]2,1] = [[[[[...,1,1]],1].

And [[0,1],1] = [[0][0] ... ,1].

And [[0,1]2,1] = [[[...,1],1],1].

And [0,2] = [[0,1][0,1] ... ,1].