id:A157849 - OEIS Search Results

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Numbers k such that are not harmonic means of divisors of harmonic (Ore) numbers (harmonic (Ore) numbers is A001599).

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4, 12, 16, 18, 20, 22, 23, 28, 30, 32, 33, 34, 36, 38, 40, 43, 52, 55, 56, 57, 58, 59, 62, 63, 64, 65, 66, 67, 68, 69, 71 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n)non-occurring in A001600(m) = A001599(m)tau(A001599(m))/sigma(A001599(m)) = A001599(m)A000005(A001599(m))/A000203(A001599(m)).`
	CROSSREFS	`Cf. A001600, A001599, A000005, A000203.` `Sequence in context: A121728 A032823 A163838 this_sequence A137257 A144976 A119622` `Adjacent sequences: A157846 A157847 A157848 this_sequence A157850 A157851 A157852`
	KEYWORD	`nonn`
	AUTHOR	`Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Mar 07 2009`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.