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A157244
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Decimal expansion of estimate of the weakly triple-free set constant.
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1
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8, 0, 0, 3, 1, 9, 4, 8, 3, 8, 0, 2
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| This is the asymptotic density of maximal sets in {1,..,n} encompassing no set {x,2x,3x}, as n approaches infinity.
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LINKS
| F. R. K. Chung, P. Erdos and R. L. Graham, On Sparse Sets Hitting Linear Forms, Number Theory for the Millennium, v. 1, Proc. 2000 Urbana conf., A. K. Peters, 2002, pp. 257-272.
S. R. Finch, Triple-Free Sets of Integers
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EXAMPLE
| 0.800319483802... = 1 - 0.199680516197
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CROSSREFS
| Cf. A157245.
Sequence in context: A047758 A186980 A171918 * A154191 A010771 A199064
Adjacent sequences: A157241 A157242 A157243 * A157245 A157246 A157247
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KEYWORD
| cons,more,nonn
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AUTHOR
| S. R. Finch (Steven.Finch(AT)inria.fr), Feb 25 2009, Feb 27 2009
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