id:A121042 - OEIS Search Results

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Smallest divisor of n that is also contained in the decimal representation of n.

+0
3

1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 23, 2, 5, 2, 27, 2, 29, 3, 1, 2, 3, 34, 5, 3, 37, 38, 3, 4, 1, 2, 43, 4, 5, 46, 47, 4, 49, 5, 1, 2, 53, 54, 5, 56, 57, 58, 59, 6, 1, 2, 3, 4, 5, 6, 67, 68, 69, 7, 1, 2, 73, 74, 5, 76, 7, 78, 79, 8, 1, 2, 83, 4, 5, 86, 87, 8, 89, 9, 1 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`1 <= a(n) <= n;` `a(A011531(n)) = 1; a(n) = n iff A121041(n) = 1.`
	EXAMPLE	`a(48) = Min{4, 8, 48} = 4;` `a(49) = Min{49} = 49;` `a(120) = Min{1, 2, 12, 20, 120} = 1;` `a(121) = Min{1} = 1.`
	CROSSREFS	`Sequence in context: A133500 A052423 A126616 this_sequence A000030 A134777 A004427` `Adjacent sequences: A121039 A121040 A121041 this_sequence A121043 A121044 A121045`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 21 2006`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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