id:A053627 - OEIS Search Results

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Smallest integer which is the harmonic mean of n and an integer.

+0
4

1, 2, 3, 4, 5, 3, 7, 8, 9, 10, 11, 6, 13, 14, 5, 16, 17, 9, 19, 8, 21, 22, 23, 12, 25, 26, 27, 7, 29, 10, 31, 32, 33, 34, 20, 18, 37, 38, 39, 16, 41, 12, 43, 44, 9, 46, 47, 24, 49, 50, 51, 52, 53, 27, 55, 14, 57, 58, 59, 20, 61, 62, 28, 64, 65, 11, 67, 68, 69, 40, 71, 16, 73, 74 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`if a(n)<>n then n is in A005279`
	EXAMPLE	`a(6)=3 because 3 is the harmonic mean of 6 and 2 and neither 2 nor 1 are the harmonic means of 6 and an integer`
	CROSSREFS	`Cf. A005279.` `Sequence in context: A098988 A034699 A111615 this_sequence A125746 A143055 A017890` `Adjacent sequences: A053624 A053625 A053626 this_sequence A053628 A053629 A053630`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Mar 20 2000`

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

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