A093163 - OEIS

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A093163

Primes of the form 40*R_n + 3, where R_n is the repunit (A002275) of length n.

3, 43, 443, 444443, 444444443, 444444444443, 444444444444444444444444444443, 44444444444444444444444444444443 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`Primes of form (4*10^n-13)/9; The next prime = 183 digits. [From Librandi, Nov 16 2010]`
	CROSSREFS	`Cf. A056661 (corresponding n), A173770.` `Sequence in context: A036940 A099664 A173770 * A199020 A141060 A201784` `Adjacent sequences: A093160 A093161 A093162 * A093164 A093165 A093166`
	KEYWORD	`nonn`
	AUTHOR	`Rick L. Shepherd (rshepherd2(AT)hotmail.com), Mar 26 2004`

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Last modified February 14 16:05 EST 2012. Contains 205635 sequences.