id:A068353 - OEIS Search Results

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Decimal expansion of smallest positive root of cos(pi x/2) cosh(pi x/2) = -1.

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

	OFFSET	`1,3`
	COMMENT	`The root is x = 1.1937283253889343234388...`
	MATHEMATICA	`RealDigits[FindRoot[Cos[Pi x/2]Cosh[Pi x/2]==-1, {x, 1}, WorkingPrecision->200][[1, 2]]][[1]]`
	CROSSREFS	`Sequence in context: A127794 A011390 A011229 this_sequence A136251 A073002 A011282` `Adjacent sequences: A068350 A068351 A068352 this_sequence A068354 A068355 A068356`
	KEYWORD	`nonn,cons`
	AUTHOR	`Joost de Winter (jdewinter(AT)x-racing.nl), Feb 28 2002`
	EXTENSIONS	`Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Jun 07 2002` `Offset corrected by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 05 2009`

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

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