A025679 Exponent of 9 (value of j) in n-th number of form 5^i*9^j.

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

Offset

1,6

Links

Table of n, a(n) for n=1..106.

Crossrefs

Sequence in context: A022337 A025687 A025666 * A071491 A156537 A239501

Adjacent sequences: A025676 A025677 A025678 * A025680 A025681 A025682

Keyword

nonn

Author

David W. Wilson

Status

approved