We study the digits of powers 2 in ternary number system. propose an algorithm for doubling numbers numeral Using this algorithm, we explain appearance “stairs” formed by 0s and 2s when $2^n (n=0,1,2, \ldots)$ are written vertically so that example last forming one column, second another forth. use patterns leftmost digits, rightmost to prove sizes these blocks unbounded. also how regularity ch...