id:A093947 - OEIS Search Results

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Primes of the form 8*10^n - 1.

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7, 79, 79999, 799999, 799999999, 79999999999, 79999999999999999999999999, 79999999999999999999999999999999999999999999999999, 79999999999999999999999999999999999999999999999999999999999999999999999999999 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Equivalently, primes of the form 710^n + 9R_n, where R_n is the repunit (A002275) of length n.`
	CROSSREFS	`Cf. A056721 (corresponding n).` `Sequence in context: A159524 A113034 A052385 this_sequence A115986 A085606 A058785` `Adjacent sequences: A093944 A093945 A093946 this_sequence A093948 A093949 A093950`
	KEYWORD	`nonn`
	AUTHOR	`Rick L. Shepherd (rshepherd2(AT)hotmail.com), Apr 17 2004`

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Last modified February 9 11:24 EST 2010. Contains 172296 sequences.

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