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Decimal expansion of 4/sqrt(Pi)*exp(-gamma/2)*K where K is the Landau-Ramanujan constant and gamma the Euler-Mascheroni constant.

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1, 2, 9, 2, 3, 0, 4, 1, 5, 7, 1, 2, 8, 6, 8, 8, 6, 0, 7, 1, 0, 9, 1, 3, 8, 3, 8, 9, 8, 7, 0, 4, 3, 2, 0, 6, 5, 3, 4, 2, 9, 6, 1, 4, 2, 5, 0, 1, 2, 9, 9, 7, 2, 4, 1, 2, 2, 7, 6, 2, 9, 2, 3, 1, 6, 1, 9, 5, 0, 0, 0, 5, 5, 2, 8, 2, 3, 2, 0, 7, 9, 4, 2, 7, 3, 0, 3, 0, 7, 5, 9, 7, 5, 5, 2, 4, 4, 9, 9, 4, 1, 6, 1, 3, 2 (list; cons; graph; listen)

	OFFSET	`0,2`
	COMMENT	`An illustration of the Chebyshev effect.`
	REFERENCES	`Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, p. 100` `S. Uchiyama, On some products involving primes, Proc. Amer. Math. Soc. 28 (1971) 629-630; MR 43#3227`
	FORMULA	`4/sqrt(Pi)exp(-gamma/2)K=lim x ->oo prod(1-1/p) where p runs through the primes p==1 mod 4 and p<=x.`
	EXAMPLE	`1.2923041571286886071...`
	CROSSREFS	`Cf. A064533.` `Sequence in context: A095178 A019645 A011065 this_sequence A019826 A121602 A011324` `Adjacent sequences: A088537 A088538 A088539 this_sequence A088541 A088542 A088543`
	KEYWORD	`cons,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Nov 16 2003`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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