id:A083870 - OEIS Search Results

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Number of pairs (x,y) of palindromes such that n-th decimal palindrome = x*y and 1<=x<=y.

+0
2

1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 2, 2, 3, 2, 4, 2, 4, 3, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 3, 1, 2, 1, 2, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 2, 3, 1, 2, 1, 3, 1, 2, 1, 5, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 4, 3, 2, 2, 2, 1, 4, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 4, 1, 2, 1, 3, 1, 2, 1, 4, 1, 3, 1, 1, 2, 1, 1, 2 (list; graph; listen)

	OFFSET	`1,4`
	EXAMPLE	`A002113(132)=3333 = 13333 = 31111 = 11303 = 33101, therefore` `a(132)=4.`
	CROSSREFS	`Cf. A083867, A038548, A002113.` `Adjacent sequences: A083867 A083868 A083869 this_sequence A083871 A083872 A083873` `Sequence in context: A054740 A118458 A118459 this_sequence A052299 A071854 A072491`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 07 2003`

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Last modified October 15 09:18 EDT 2008. Contains 145015 sequences.

AT&T Labs Research