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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Table[k = 0; While[ StringPosition[ ToString[9^k], ToString[n] ] == {}, k++ ]; k, {n, 0, 75} ]

LINKS

Table of n, a(n) for n=0..75.

CROSSREFS

Cf. A030000.

Sequence in context: A200399 A161485 A326054 * A264785 A197573 A019947

Adjacent sequences:  A062523 A062524 A062525 * A062527 A062528 A062529

KEYWORD

base,nonn

AUTHOR

Robert G. Wilson v, Jun 24 2001

STATUS

approved

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Last modified November 12 21:22 EST 2019. Contains 329079 sequences. (Running on oeis4.)