id:A062524 - OEIS Search Results

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7^a(n) is smallest nonnegative power of 7 containing the string 'n'.

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4, 0, 4, 3, 2, 7, 5, 1, 5, 2, 13, 6, 12, 12, 19, 15, 5, 6, 19, 11, 12, 22, 14, 7, 4, 30, 11, 23, 10, 16, 14, 19, 11, 16, 3, 7, 9, 19, 12, 17, 4, 12, 27, 3, 18, 21, 32, 10, 8, 2, 15, 17, 10, 9, 7, 21, 15, 8, 21, 18, 9, 15, 18, 17, 6, 27, 20, 11, 5, 16, 33, 27, 12, 11, 11, 10 (list; graph; listen)

	OFFSET	`0,1`
	MATHEMATICA	`Table[k = 0; While[ StringPosition[ ToString[7^k], ToString[n] ] == {}, k++ ]; k, {n, 0, 75} ]`
	CROSSREFS	`Cf. A030000.` `Essentially the same as A063570.` `Adjacent sequences: A062521 A062522 A062523 this_sequence A062525 A062526 A062527` `Sequence in context: A081087 A135031 A016680 this_sequence A031362 A110854 A021716`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 24 2001`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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