id:A063594 - OEIS Search Results

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Smallest power of 5 having just n 9's in its decimal representation.

+0
1

1, 8, 17, 23, 58, 59, 40, 57, 74, 92, 93, 114, 112, 143, 155, 156, 160, 193, 113, 195, 212, 214, 215, 236, 216, 287, 291, 295, 309, 289, 288, 360, 274, 371, 427, 418, 444, 462, 478, 464, 466, 494, 530, 545, 482, 561, 481, 597, 644, 689, 650 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[5^k], 9] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A088488 A031458 A044991 this_sequence A110474 A118066 A044060` `Adjacent sequences: A063591 A063592 A063593 this_sequence A063595 A063596 A063597`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

AT&T Labs Research