id:A088270 - OEIS Search Results

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Palindromic primes that yield a prime when sandwiched between two 3's. (Prefixing and suffixing a -three' on both sides yields another pal prime).

+0
4

5, 7, 101, 151, 353, 727, 757, 929, 10301, 10601, 12721, 15551, 16061, 16661, 18181, 19391, 19891, 30403, 30703, 31013, 31513, 35353, 36263, 36563, 38083, 39293, 72227, 73237, 76367, 77377, 77477, 78487, 79397, 79997, 93139, 94649, 94849 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`757 is a member as 37573 is also a prime.`
	CROSSREFS	`Cf. A088269, A088271, A088272.` `Sequence in context: A067198 A062583 A165784 this_sequence A065927 A016054 A158969` `Adjacent sequences: A088267 A088268 A088269 this_sequence A088271 A088272 A088273`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 28 2003`
	EXTENSIONS	`More terms from David Wasserman (wasserma(AT)spawar.navy.mil), Jul 28 2005`

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.

AT&T Labs Research