id:A103853 - OEIS Search Results

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Numbers n such that the string 1000n is prime.

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7, 9, 19, 43, 49, 57, 69, 117, 121, 133, 151, 159, 171, 183, 187 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`If n=7, then 1000n = 10007 (prime).` `If n=121, then 1000n = 1000121 (prime).` `If n=187, then 1000n = 1000187 (prime).`
	CROSSREFS	`Cf. A103601, A103602, A103603.` `Sequence in context: A032791 A046257 A074343 this_sequence A139202 A125968 A147068` `Adjacent sequences: A103850 A103851 A103852 this_sequence A103854 A103855 A103856`
	KEYWORD	`base,nonn`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Mar 30 2005`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.