id:A061564 - OEIS Search Results

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Numbers n such that the repeating part of the decimal expansion of 1/n (omitting leading or trailing zeros) forms a prime number.

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3, 12, 18, 27, 30, 33, 36, 45, 48, 75, 120, 180, 192, 198, 270, 277, 288, 300, 330, 333, 360, 369, 418, 437, 450, 480, 495, 653, 673, 750, 768, 802, 874, 897, 899, 909, 941, 982, 985, 1042, 1152, 1200, 1437, 1451, 1501, 1529, 1546, 1584, 1618, 1623, 1693 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Index entries for sequences related to decimal expansion of 1/n`
	EXAMPLE	`1/18=.05555555..., the repeating part is 5, so 18 is in the sequence.`
	CROSSREFS	`Sequence in context: A032703 A125821 A063229 this_sequence A052637 A120623 A043877` `Adjacent sequences: A061561 A061562 A061563 this_sequence A061565 A061566 A061567`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Brian Wallace (wallacebrianedward(AT)yahoo.co.uk), May 18 2001`
	EXTENSIONS	`Corrected and extended by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), May 19 2001` `More terms from Lior Manor (lior.manor(AT)gmail.com) Nov 26 2001`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research