id:A053629 - OEIS Search Results

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Smallest integer where the harmonic mean of a(n) and A005279(n) is an integer.

+0
1

2, 4, 3, 6, 5, 8, 4, 6, 14, 12, 10, 7, 5, 16, 18, 8, 12, 18, 6, 28, 9, 15, 21, 26, 20, 12, 33, 10, 7, 32, 22, 25, 34, 24, 21, 36, 11, 16, 38, 45, 8, 21, 39, 12, 15, 46, 20, 26, 18, 30, 9, 42, 13, 40, 54, 33, 24, 30, 58, 70, 66, 20, 14, 62, 55, 54, 10, 64, 30, 28, 18, 50, 68, 48 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`if m is not in A005279 then smallest integer to have an integer harmonic mean with m is m`
	CROSSREFS	`Cf. A005279, A046793.` `Sequence in context: A175027 A119477 A161920 this_sequence A135761 A086305 A073898` `Adjacent sequences: A053626 A053627 A053628 this_sequence A053630 A053631 A053632`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Mar 20 2000`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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