login
A062526
9^a(n) is smallest power of 9 containing the string 'n'.
2
5, 0, 3, 6, 5, 4, 4, 3, 2, 1, 11, 15, 18, 11, 6, 18, 17, 19, 13, 23, 9, 8, 14, 21, 12, 13, 26, 28, 12, 3, 8, 6, 13, 24, 10, 18, 12, 27, 9, 27, 10, 6, 9, 8, 6, 14, 8, 7, 9, 5, 18, 16, 18, 6, 13, 35, 4, 20, 13, 5, 11, 4, 23, 18, 12, 4, 17, 8, 24, 7, 22, 17, 3, 26, 9, 30
OFFSET
0,1
COMMENTS
Table[k = 0; While[ StringPosition[ ToString[9^k], ToString[n] ] == {}, k++ ]; k, {n, 0, 75} ]
CROSSREFS
Cf. A030000.
Sequence in context: A200399 A161485 A326054 * A264785 A197573 A019947
KEYWORD
base,nonn
AUTHOR
Robert G. Wilson v, Jun 24 2001
STATUS
approved