id:A083149 - OEIS Search Results

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a(1) = 3, a(n) = smallest nontrivial palindromic multiple of a(n-1). a(n) is not equal to a(n-1) or a concatenation of a(n-1) with itself.

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3, 6, 222, 444, 888, 21312, 42624, 468864, 40322304, 80644608, 802494494208, 213525880454088525312 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Multiplier for a(12) is larger than 2000000000.`
	LINKS	`P. De Geest, WONplate 36`
	CROSSREFS	`Cf. A083150.` `Sequence in context: A115647 A019437 A163423 this_sequence A068375 A126297 A157540` `Adjacent sequences: A083146 A083147 A083148 this_sequence A083150 A083151 A083152`
	KEYWORD	`base,more,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 05 2003`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.