id:A060629 - OEIS Search Results

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1/2+Sum_{n >= 1) a(n)*x^(2*n)/(4^n*(2*n)!) = 1/Pi*EllipticK(x).

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1, 27, 2250, 385875, 112521150, 49921883550, 31336679474100, 26440323306271875, 28866957423047493750, 39599692192936551926250, 66678681708870074070727500, 135213253391970365203090248750 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`EllipticK(x) = 1/2Pi + 1/8Pix^2 + 9/128Pix^4 + 25/512Pix^6 + 1225/32768Pix^8 + 3969/131072Pi*x^10 + O(x^12).`
	CROSSREFS	`Cf. A038533, A038534.` `Sequence in context: A075081 A017307 A167725 this_sequence A086206 A017427 A050644` `Adjacent sequences: A060626 A060627 A060628 this_sequence A060630 A060631 A060632`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)eunet.rs), Apr 14 2001`

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

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