A065474 - OEIS

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A065474

Decimal expansion of Feller-Tornier constant: product(1 - 2/p^2, p prime).

3, 2, 2, 6, 3, 4, 0, 9, 8, 9, 3, 9, 2, 4, 4, 6, 7, 0, 5, 7, 9, 5, 3, 1, 6, 9, 2, 5, 4, 8, 2, 3, 7, 0, 6, 6, 5, 7, 0, 9, 5, 0, 5, 7, 9, 6, 6, 5, 8, 3, 2, 7, 0, 9, 9, 6, 1, 8, 1, 1, 2, 5, 2, 4, 5, 3, 2, 5, 0, 0, 6, 3, 4, 8, 6, 2, 4, 4, 6, 0, 9, 8, 8, 4, 5, 2, 3, 4, 8, 1, 5, 6, 8, 5, 6, 3, 7, 5 (list; constant; graph; refs; listen; history; text; internal format)

	OFFSET	`0,1`
	COMMENTS	`Density of A007674, squarefree n such that n+1 is squarefree. - Charles R Greathouse IV, Aug 10 2011`
	REFERENCES	`H. Cohen, High precision computation of Hardy-Littlewood constants, http://www.math.u-bordeaux.fr/~cohen/hardylw.dvi`
	LINKS	`Table of n, a(n) for n=0..97.` `R. J. Mathar, Hardy-Littlewood constants embedded into infinite products over all positive integers, constant F_1^(2).` `G. Niklasch, Some number theoretical constants: 1000-digit values [Cached copy]` `Eric Weisstein's World of Mathematics, Squarefree` `Eric Weisstein's World of Mathematics, Prime Products`
	EXAMPLE	`0.322634098939244670579531692548...`
	CROSSREFS	`Cf. A065493, A074893.` `Sequence in context: A093055 A106335 A218698 * A197586 A111702 A091029` `Adjacent sequences: A065471 A065472 A065473 * A065475 A065476 A065477`
	KEYWORD	`cons,nonn`
	AUTHOR	`N. J. A. Sloane, Nov 19 2001`
	EXTENSIONS	`Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Sep 10 2002`
	STATUS	`approved`

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Last modified June 19 13:26 EDT 2013. Contains 226411 sequences.