id:A082520 - OEIS Search Results

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Palindromic Sophie Germain primes: both p and 2p+1 are palindromic primes.

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2, 3, 5, 191, 19391, 38183, 1508051, 1609061, 1628261, 3717173, 3916193, 161535161, 161838161, 170646071, 172747271, 182949281, 190909091, 352909253, 354848453, 360818063, 364636463, 15052625051, 15150805151, 15253635251 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Subset of A051835 (Intersection of A002385 and A005384).`
	REFERENCES	`H. Dubner, "Palindromic Sophie Germain primes", Journal of Recreational Mathematics, Vol. 26(1):38-41 1994 Baywood Inc. NY`
	LINKS	`H. Dubner, Palindromic Sophie Germain Primes`
	EXAMPLE	`3916193 is in the sequence because both 3916193 and 2*3916193+1=7832387 are palindromic primes.`
	CROSSREFS	`Cf. A002385, A005384.` `Sequence in context: A160600 A064936 A041655 this_sequence A062597 A038526 A082755` `Adjacent sequences: A082517 A082518 A082519 this_sequence A082521 A082522 A082523`
	KEYWORD	`base,nonn`
	AUTHOR	`Lekraj Beedassy (blekraj(AT)yahoo.com), Apr 30 2003`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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