id:A121041 - OEIS Search Results

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Number of divisors of n that are also contained in the decimal representation of n.

+0
22

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

	OFFSET	`1,10`
	COMMENT	`a(n) = 1 iff A121042(n) = n.`
	EXAMPLE	`a(22) = #{2, 22} = 2;` `a(23) = #{23} = 1;` `a(24) = #{2, 4, 24} = 3.`
	CROSSREFS	`Cf. A121022, A121023, A121024, A121025, A121026, A121027, A121028, A121029, A121030, A121031, A121032, A121033, A121034, A121035, A121036, A121037, A121038, A121039, A121040.` `Sequence in context: A067132 A089132 A107259 this_sequence A003589 A082204 A087159` `Adjacent sequences: A121038 A121039 A121040 this_sequence A121042 A121043 A121044`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jul 21 2006`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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