A025667 Exponent of 7 (value of j) in n-th number of form 5^i*7^j.

0, 0, 1, 0, 1, 2, 0, 1, 2, 3, 0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 0, 5, 1, 2, 3, 4, 0, 5, 1, 6, 2, 3, 4, 0, 5, 1, 6, 2, 7, 3, 4, 0, 5, 1, 6, 2, 7, 3, 8, 4, 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 0, 5, 1, 6, 2, 7, 3, 8, 4, 9, 0, 5, 10, 1, 6, 2, 7, 3, 8, 4, 9, 0, 5, 10, 1, 6, 11, 2, 7, 3, 8, 4, 9, 0, 5, 10, 1, 6, 11, 2, 7, 12, 3, 8, 4

Offset: 1

Author

David W. Wilson

Keywords

• nonn

Crossrefs

Cf. A003595.