id:A063554 - OEIS Search Results

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

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1, 12, 34, 32, 83, 53, 92, 139, 93, 172, 173, 244, 254, 335, 342, 332, 333, 415, 356, 434, 506, 473, 477, 476, 517, 532, 596, 643, 662, 673, 731, 729, 603, 735, 850, 793, 792, 966, 959, 961, 1043, 1129, 1131, 1159, 1153, 1077, 1157, 1241, 1078, 1328 (list; graph; listen)

	OFFSET	`0,2`
	MATHEMATICA	`a = {}; Do[k = 1; While[ Count[ IntegerDigits[2^k], 9] != n, k++ ]; a = Append[a, k], {n, 0, 50} ]; a`
	CROSSREFS	`Sequence in context: A043941 A117476 A122436 this_sequence A059805 A141694 A077295` `Adjacent sequences: A063551 A063552 A063553 this_sequence A063555 A063556 A063557`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 10 2001`

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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

AT&T Labs Research