id:A063628 - OEIS Search Results

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Smallest power of 9 having just n 2's in its decimal representation.

+0
1

1, 3, 15, 12, 28, 26, 30, 39, 70, 50, 54, 82, 93, 106, 105, 80, 110, 121, 130, 135, 156, 175, 173, 183, 174, 211, 194, 264, 158, 216, 285, 251, 306, 262, 308, 298, 263, 322, 346, 323, 354, 276, 375, 380, 419, 350, 404, 432, 384, 465, 403 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[9^k], 2] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A138006 A145179 A099476 this_sequence A096672 A159983 A133227` `Adjacent sequences: A063625 A063626 A063627 this_sequence A063629 A063630 A063631`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research