id:A063614 - OEIS Search Results

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Smallest power of 7 having just n 8's in its decimal representation.

+0
1

1, 5, 12, 19, 21, 22, 58, 51, 52, 65, 78, 79, 77, 123, 161, 148, 132, 131, 145, 141, 201, 154, 225, 155, 237, 281, 233, 248, 265, 293, 264, 279, 272, 287, 322, 261, 304, 382, 406, 424, 389, 381, 475, 414, 397, 458, 434, 483, 446, 541, 465 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[7^k], 8] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A101757 A109403 A093084 this_sequence A048928 A003328 A048926` `Adjacent sequences: A063611 A063612 A063613 this_sequence A063615 A063616 A063617`
	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