id:A096827 - OEIS Search Results

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Number of antichains in divisor lattice D(n).

+0
4

2, 3, 3, 4, 3, 6, 3, 5, 4, 6, 3, 10, 3, 6, 6, 6, 3, 10, 3, 10, 6, 6, 3, 15, 4, 6, 5, 10, 3, 20, 3, 7, 6, 6, 6, 20, 3, 6, 6, 15, 3, 20, 3, 10, 10, 6, 3, 21, 4, 10, 6, 10, 3, 15, 6, 15, 6, 6, 3, 50, 3, 6, 10, 8, 6, 20, 3, 10, 6, 20, 3, 35, 3, 6, 10, 10, 6, 20, 3, 21, 6, 6, 3, 50, 6, 6, 6, 15, 3, 50, 6 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`The divisor lattice D(n) is the lattice of the divisors of the natural number n.` `The empty set is counted as an antichain in D(n).`
	CROSSREFS	`Cf. A096825, A096826, A097699.` `Sequence in context: A140605 A049878 A038203 this_sequence A063826 A152983 A100889` `Adjacent sequences: A096824 A096825 A096826 this_sequence A096828 A096829 A096830`
	KEYWORD	`nonn`
	AUTHOR	`Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 17 2004`
	EXTENSIONS	`More terms from John W. Layman (layman(AT)math.vt.edu), Aug 20 2004`

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

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