id:A083998 - OEIS Search Results

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a(1) = 3; then numbers such that the concatenation a(n)a(n-1)...a(2)a(1)a(2)...a(n-1)a(n) is a prime.

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3, 1, 1, 23, 21, 3, 67, 17, 3, 39, 19, 33, 21, 39, 77, 121, 207, 9, 9, 93, 53, 1, 57, 93, 41, 339, 9, 57, 63, 1, 1091, 273, 199, 83, 213, 529, 569, 397, 21, 71, 481, 243, 111, 419, 273, 231, 63, 277, 483, 201, 531, 77, 139, 1313, 529, 1443, 587, 649, 351, 273, 189 (list; graph; listen)

	OFFSET	`0,1`
	CROSSREFS	`Cf. A083996, A083997, A083999, A084000, A083401.` `Adjacent sequences: A083995 A083996 A083997 this_sequence A083999 A084000 A084001` `Sequence in context: A121412 A016561 A111382 this_sequence A126465 A077509 A083993`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 23 2003`
	EXTENSIONS	`More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 03 2003`

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Last modified October 15 20:12 EDT 2008. Contains 145099 sequences.

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