id:A063630 - OEIS Search Results

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Smallest power of 9 having just n 4's in its decimal representation.

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1, 5, 6, 10, 30, 29, 43, 45, 36, 73, 75, 92, 68, 116, 102, 85, 98, 141, 166, 151, 109, 154, 172, 196, 175, 176, 217, 244, 245, 207, 275, 226, 242, 289, 269, 263, 297, 261, 326, 296, 355, 335, 369, 336, 412, 414, 360, 458, 394, 457, 404 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[9^k], 4] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A075904 A018834 A029943 this_sequence A119102 A162015 A162017` `Adjacent sequences: A063627 A063628 A063629 this_sequence A063631 A063632 A063633`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

AT&T Labs Research