id:A063583 - OEIS Search Results

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Smallest power of 4 having just n 8's in its decimal representation.

+0
1

1, 7, 13, 31, 27, 41, 65, 37, 89, 110, 90, 117, 135, 158, 155, 201, 171, 211, 208, 175, 161, 235, 227, 213, 290, 321, 316, 354, 363, 344, 459, 277, 532, 350, 517, 409, 448, 419, 536, 465, 541, 490, 525, 549, 565, 605, 604, 674, 577, 719, 615 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[4^k], 8] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A082221 A096333 A133325 this_sequence A065764 A073473 A040084` `Adjacent sequences: A063580 A063581 A063582 this_sequence A063584 A063585 A063586`
	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.

AT&T Labs Research