id:A090272 - OEIS Search Results

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Take each palindrome ending in 1, 3, 7, or 9, and find smallest prime formed by the digits of that palindrome, followed by a string of digits, followed by the palindrome again.

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11, 313, 727, 919, 11311, 33533, 77377, 990599, 10101101, 1114111, 1212121, 1311131, 1411141, 1513151, 1611161, 1712171, 18102181, 1917191, 30301303, 3135313, 3233323, 3331333, 3439343, 35301353, 3635363, 3732373, 3836383 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`Prime pertaining to 11 is 11311 and that pertaining to 99 is 990599.`
	CROSSREFS	`Cf. A090270, A090272.` `Sequence in context: A100445 A060495 A070278 this_sequence A090271 A106827 A108274` `Adjacent sequences: A090269 A090270 A090271 this_sequence A090273 A090274 A090275`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 28 2003`
	EXTENSIONS	`More terms from Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 03 2006`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research