id:A083144 - OEIS Search Results

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Smallest k such that k*prime(n) is an n-digit palindrome, or 0 if no such number exists.

+0
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1, 11, 101, 143, 991, 7777, 59353, 534479, 4353087, 34521069, 322583871, 2703002973, 24391597561, 232583697907, 2127673106383, 18867930754717, 169491573220339, 1639345391147541, 14925373676119403, 140845071661971831 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Conjecture: no entry is zero.`
	FORMULA	`a(n) = A083143(n)/prime(n).`
	CROSSREFS	`Cf. A083143.` `Sequence in context: A068685 A109830 A052035 this_sequence A058411 A134462 A156753` `Adjacent sequences: A083141 A083142 A083143 this_sequence A083145 A083146 A083147`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), Apr 25 2003`
	EXTENSIONS	`More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 09 2003.`

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

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