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Search: id:A062520
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A062520 3^a(n) is smallest nonnegative power of 3 containing the string 'n'. +0
2
10, 0, 3, 1, 5, 8, 8, 3, 4, 2, 21, 19, 17, 22, 11, 13, 17, 11, 7, 9, 18, 7, 19, 13, 5, 26, 19, 3, 24, 6, 16, 12, 13, 31, 15, 21, 24, 29, 18, 31, 17, 12, 18, 5, 12, 28, 16, 11, 15, 10, 35, 32, 33, 12, 26, 27, 8, 40, 26, 10, 21, 8, 19, 17, 24, 8, 33, 16, 9, 14, 35, 11, 6, 29, 18, 47 (list; graph; listen)
OFFSET

0,1

MATHEMATICA

Table[k = 0; While[ StringPosition[ ToString[3^k], ToString[n] ] == {}, k++ ]; k, {n, 0, 75} ]

CROSSREFS

Cf. A030000. Essentially the same as A063566.

Sequence in context: A003785 A038689 A030000 this_sequence A063741 A010681 A095418

Adjacent sequences: A062517 A062518 A062519 this_sequence A062521 A062522 A062523

KEYWORD

base,nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 24 2001

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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