id:A125961 - OEIS Search Results

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Decimal expansion of e * sqrt(pi) * erf(1).

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1

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

	OFFSET	`1,1`
	FORMULA	`a = sum(2^k / (2k-1)!!, k=1..infinity)`
	EXAMPLE	`a = 4.060156938557409...`
	MATHEMATICA	`RealDigits[N[E Sqrt[Pi] Erf[1], 100]][[1]]`
	CROSSREFS	`Sequence in context: A134530 A126813 A056141 this_sequence A016681 A076290 A055672` `Adjacent sequences: A125958 A125959 A125960 this_sequence A125962 A125963 A125964`
	KEYWORD	`cons,nonn`
	AUTHOR	`Fredrik Johansson (fredrik.johansson(AT)gmail.com), Feb 06 2007`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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