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A062522 5^a(n) is smallest nonnegative power of 5 containing the string 'n'. 2
8, 0, 2, 5, 11, 1, 4, 7, 7, 8, 14, 23, 3, 30, 12, 6, 20, 15, 22, 9, 13, 33, 13, 22, 12, 2, 18, 37, 11, 17, 15, 5, 19, 35, 19, 14, 20, 21, 18, 8, 12, 12, 37, 20, 12, 17, 18, 21, 11, 26, 23, 14, 16, 9, 30, 23, 6, 15, 16, 24, 24, 14, 4, 19, 20, 10, 31, 20, 21, 18, 13, 21, 18, 19, 20 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Table[k = 0; While[ StringPosition[ ToString[5^k], ToString[n]] == {}, k++ ]; k, {n, 0, 75} ]

LINKS

Table of n, a(n) for n=0..74.

CROSSREFS

Cf. A030000. Essentially the same as A063568.

Sequence in context: A261168 A329086 A265294 * A117888 A295330 A094240

Adjacent sequences:  A062519 A062520 A062521 * A062523 A062524 A062525

KEYWORD

base,nonn

AUTHOR

Robert G. Wilson v, Jun 24 2001

STATUS

approved

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Last modified November 18 07:22 EST 2019. Contains 329252 sequences. (Running on oeis4.)