A037906 Number of i such that |d(i)-d(i-1)|=1, where Sum{d(i)*3^i: i=0,1,...,m} is base 3 representation of n.

0, 0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 1, 0, 1, 1, 2, 1, 0, 1, 0, 2, 1, 2, 0, 1, 0, 1, 2, 1, 3, 2, 3, 1, 2, 1, 1, 2, 1, 1, 0, 1, 1, 2, 1, 1, 2, 1, 3, 2, 3, 1, 2, 1, 0, 1, 0, 2, 1, 2, 0, 1, 0, 2, 3, 2, 2, 1, 2, 2, 3, 2, 0, 1, 0, 2, 1, 2, 0, 1, 0, 1, 2, 1, 3, 2, 3, 1, 2, 1, 3