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A073000 Decimal expansion of arctangent of 1/2. 4
4, 6, 3, 6, 4, 7, 6, 0, 9, 0, 0, 0, 8, 0, 6, 1, 1, 6, 2, 1, 4, 2, 5, 6, 2, 3, 1, 4, 6, 1, 2, 1, 4, 4, 0, 2, 0, 2, 8, 5, 3, 7, 0, 5, 4, 2, 8, 6, 1, 2, 0, 2, 6, 3, 8, 1, 0, 9, 3, 3, 0, 8, 8, 7, 2, 0, 1, 9, 7, 8, 6, 4, 1, 6, 5, 7, 4, 1, 7, 0, 5, 3, 0, 0, 6, 0, 0, 2, 8, 3, 9, 8, 4, 8, 8, 7, 8, 9, 2, 5, 5, 6, 5, 2, 9 (list; constant; graph; refs; listen; history; internal format)
OFFSET

0,1

LINKS

Simon Plouffe, arctan(1/2)

EXAMPLE

Atan(0.5) = 0.463647609000806...

MATHEMATICA

RealDigits[ ArcTan[1/2], 10, 110] [[1]]

CROSSREFS

Sequence in context: A081709 A200640 A179453 * A198113 A082193 A079171

Adjacent sequences:  A072997 A072998 A072999 * A073001 A073002 A073003

KEYWORD

cons,nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 03 2002

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Last modified February 14 18:47 EST 2012. Contains 205663 sequences.