A164920 - OEIS

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A164920

Primes which are obtained at least by two ways using the iterations of the Bertrand operator (see A164917) beginning with primes of A164368

113, 139, 199, 211, 223, 277, 293, 397, 421, 443 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`The sequence is connected with our sieve selecting the primes of A164368 from all primes.`
	LINKS	`V. Shevelev, On critical small intervals containing primes`
	EXAMPLE	`113 is in the sequence since it is obtained either by iterations of Bertrand operator beginning from 17 (17=>31=>61=>113) or by such iterations beginning with 59 (59=>113), and both of primes 17 and 59 are in A164368.`
	CROSSREFS	`A006992 A164917 A164918 A104272 A164368 A164288` `Sequence in context: A140005 A124584 A074979 * A102833 A136078 A167631` `Adjacent sequences: A164917 A164918 A164919 * A164921 A164922 A164923`
	KEYWORD	`nonn,uned`
	AUTHOR	`Vladimir Shevelev (shevelev(AT)bgu.ac.il), Aug 31 2009`

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Last modified February 17 12:30 EST 2012. Contains 206013 sequences.