A025652 Exponent of 5 (value of i) in n-th number of form 5^i*7^j.

0, 1, 0, 2, 1, 0, 3, 2, 1, 0, 4, 3, 2, 1, 0, 5, 4, 3, 2, 1, 6, 0, 5, 4, 3, 2, 7, 1, 6, 0, 5, 4, 3, 8, 2, 7, 1, 6, 0, 5, 4, 9, 3, 8, 2, 7, 1, 6, 0, 5, 10, 4, 9, 3, 8, 2, 7, 1, 6, 0, 11, 5, 10, 4, 9, 3, 8, 2, 7, 1, 12, 6, 0, 11, 5, 10, 4, 9, 3, 8, 2, 13, 7, 1, 12, 6, 0, 11, 5, 10, 4, 9, 3, 14, 8, 2, 13, 7, 1, 12, 6

Offset

1,4

Links

Table of n, a(n) for n=1..101.

Crossrefs

Sequence in context: A025646 A025661 A025671 * A025662 A025640 A025663

Adjacent sequences: A025649 A025650 A025651 * A025653 A025654 A025655

Keyword

nonn

Author

David W. Wilson

Status

approved