id:A132120 - OEIS Search Results

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Decimal expansion of the constant obtained through Pierce retro-expansion of the prime sequence.

+0
1

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

	OFFSET	`0,1`
	LINKS	`Eric Weisstein's World of Mathematics, Pierce Expansion, MathWorld.`
	FORMULA	`Equals sum_{i=1..infinity} (-1)^(i+1)/A002110(i).`
	EXAMPLE	`Equals 0.36230622236649804879862637222409346181117985853442099975995101702784188630689652...`
	MAPLE	`Digits := 80 : a := 0 : for i from 1 to 100 do a := a+(-1.0)^(i-1)/mul(ithprime(j), j=1..i) ; print(a) ; od:`
	CROSSREFS	`Cf. A064648.` `Sequence in context: A133358 A058099 A124085 this_sequence A021280 A021738 A016614` `Adjacent sequences: A132117 A132118 A132119 this_sequence A132121 A132122 A132123`
	KEYWORD	`cons,nonn`
	AUTHOR	`R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 31 2007`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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