id:A063613 - OEIS Search Results

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

+0
1

2, 1, 14, 11, 26, 29, 49, 33, 67, 81, 84, 96, 101, 95, 89, 132, 163, 160, 137, 152, 185, 177, 195, 230, 205, 188, 214, 267, 274, 288, 325, 307, 286, 285, 270, 311, 324, 353, 318, 336, 309, 329, 403, 375, 432, 436, 447, 479, 401, 459, 491 (list; graph; listen)

	OFFSET	`0,1`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[7^k], 7] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A012902 A087169 A155729 this_sequence A080346 A124026 A106204` `Adjacent sequences: A063610 A063611 A063612 this_sequence A063614 A063615 A063616`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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