You can do it with a comma separated string of text and the "tokenat" expression.
+Start of Layout
-- Array | Set size to (6,3,1)
---- + Array | For each XY element
------ Array | Set value at (Array.CurX, Array.CurY) to tokenat("100,250,150,25,25,25,250,25,25,75,150,100,25,50,150,50,100,25", Array.CurX +Array.CurY*Array.Width, ",")