id:A090517 - OEIS Search Results

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Least k such that floor[(10^n)/k] is prime.

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4

2, 9, 12, 13, 28, 19, 7, 27, 12, 13, 17, 74, 17, 14, 82, 66, 36, 44, 9, 36, 21, 13, 9, 90, 7, 19, 149, 51, 321, 35, 12, 14, 140, 13, 28, 42, 34, 36, 153, 155, 133, 46, 73, 106, 162, 109, 122, 42, 62, 422, 29, 231, 38, 34, 340, 295, 151, 197, 94, 19, 17, 83, 131, 66, 36 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(1) = 2 as 10/2 = 5 is a prime. a(3) = 12 as floor[1000/12] = 83 is prime.`
	CROSSREFS	`Cf. A090518, A090519, A090520.` `Sequence in context: A083159 A041335 A042147 this_sequence A092191 A030376 A080520` `Adjacent sequences: A090514 A090515 A090516 this_sequence A090518 A090519 A090520`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 07 2003`
	EXTENSIONS	`Corrected and extended by Mohammed Bouayoun (bouyao(AT)wanadoo.fr), Jan 28 2004` `Further terms from David Wasserman (wasserma(AT)spawar.navy.mil), Dec 20 2005`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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