id:A069501 - OEIS Search Results

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a(1) = 9; a(n) = smallest multiple of a(n-1) which is a palindromic square.

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9, 12321, 102030201, 12345654321, 102234363432201, 10022014302620341022001, 10002000320024001610042002300020001 (list; graph; listen)

	OFFSET	`0,1`
	LINKS	`P. De Geest, Palindromic squares`
	CROSSREFS	`Cf. A069502.` `Sequence in context: A053975 A137063 A055320 this_sequence A030254 A140596 A055309` `Adjacent sequences: A069498 A069499 A069500 this_sequence A069502 A069503 A069504`
	KEYWORD	`nonn,base,hard`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 30 2002.`
	EXTENSIONS	`More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Feb 07 2003.`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.