A022332 Exponent of 2 (value of i) in n-th number of form 2^i*5^j.

0, 1, 2, 0, 3, 1, 4, 2, 0, 5, 3, 1, 6, 4, 2, 0, 7, 5, 3, 1, 8, 6, 4, 2, 9, 0, 7, 5, 3, 10, 1, 8, 6, 4, 11, 2, 9, 0, 7, 5, 12, 3, 10, 1, 8, 6, 13, 4, 11, 2, 9, 0, 7, 14, 5, 12, 3, 10, 1, 8, 15, 6, 13, 4, 11, 2, 9, 16, 0, 7, 14, 5, 12, 3, 10, 17, 1, 8, 15, 6, 13, 4, 11, 18, 2, 9, 16, 0, 7, 14, 5, 12, 19, 3, 10