id:A063635 - OEIS Search Results

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

+0
1

2, 1, 5, 15, 25, 18, 41, 56, 51, 69, 66, 102, 87, 137, 88, 116, 100, 117, 135, 151, 129, 110, 190, 139, 187, 210, 236, 253, 218, 261, 264, 257, 301, 318, 312, 303, 285, 335, 291, 337, 300, 310, 384, 351, 390, 362, 374, 405, 413, 435, 436 (list; graph; listen)

	OFFSET	`0,1`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[9^k], 9] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A049950 A095216 A144237 this_sequence A144054 A144058 A013014` `Adjacent sequences: A063632 A063633 A063634 this_sequence A063636 A063637 A063638`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research