A025668 Exponent of 7 (value of j) in n-th number of form 6^i*7^j.

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

Offset

1,6

Links

Table of n, a(n) for n=1..103.

Crossrefs

Sequence in context: A163351 A166352 A025690 * A373748 A048151 A025675

Adjacent sequences: A025665 A025666 A025667 * A025669 A025670 A025671

Keyword

nonn

Author

David W. Wilson

Status

approved