id:A110746 - OEIS Search Results

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a(n+1) is the least multiple of a(n) such that the digit reversal of the concatenation of the first n+1 terms is prime.

+0
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1, 1, 2, 4, 8, 136, 272, 1360, 14960, 254320, 6103680, 30518400, 335702400, 8056857600, 499525171200, 63439696742400, 1649432115302400, 94017630572236800, 5923110726050918400, 1528162567321136947200, 385096966964926510694400, 93963659939442068609433600 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`11, 211, 4211, 84211, 63184211 are all primes.`
	CROSSREFS	`Cf. A110747.` `Sequence in context: A018777 A130693 A060815 this_sequence A084010 A133036 A083147` `Adjacent sequences: A110743 A110744 A110745 this_sequence A110747 A110748 A110749`
	KEYWORD	`base,nonn,less`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 10 2005`
	EXTENSIONS	`Clarified definition and extended. - David Wasserman (dwasserm(AT)earthlink.net), Dec 16 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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