id:A063592 - OEIS Search Results

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Smallest power of 5 having just n 7's in its decimal representation.

+0
1

1, 7, 15, 34, 31, 61, 42, 55, 74, 82, 96, 134, 110, 127, 111, 160, 164, 126, 141, 194, 247, 250, 223, 255, 269, 281, 258, 292, 378, 321, 276, 340, 435, 418, 407, 412, 425, 475, 365, 422, 462, 476, 533, 479, 495, 429, 538, 526, 543, 542, 625 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[5^k], 7] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Adjacent sequences: A063589 A063590 A063591 this_sequence A063593 A063594 A063595` `Sequence in context: A120094 A078485 A014001 this_sequence A048694 A041094 A042287`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

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Last modified October 13 09:05 EDT 2008. Contains 145008 sequences.

AT&T Labs Research