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A120029 Decimal expansion of the value of Minkowski's question mark function at Levy's constant (Exp[Pi^2/(12*Log[2])], A086702). +0
2
3, 1, 6, 4, 0, 6, 2, 4, 9, 9, 9, 9, 2, 7, 2, 4, 0, 4, 2, 3, 8, 5, 8, 1, 6, 5, 7, 4, 0, 9, 6, 6, 7, 9, 6, 8, 7, 4, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 3, 2, 6, 6, 6, 4, 0, 8, 4, 0, 0, 2, 7, 1, 0, 9, 3, 8, 0, 5, 8, 0, 2, 1, 0, 6, 6, 1, 4, 9, 6, 1, 8, 0, 7, 9, 6, 6, 8, 9, 9, 1, 2, 2, 2, 3, 7, 4 (list; cons; graph; listen)
OFFSET

1,1

COMMENT

a[92] has over 150 decimal digits, making 750332738256083509758042341909438953923620244270237443771885409340366143805720089/2^267 an excellent approximation to the constant.

LINKS

Index entries for sequences related to Minkowski's question mark function

EXAMPLE

3.16406249999272404238581657409667968750...

MATHEMATICA

RealDigits[cf = ContinuedFraction[Exp[Pi^2/(12*Log[2])], 50(*arbitrary precision*)]; IntegerPart[Exp[Pi^2/(12*Log[2])]] + Sum[(-1)^(k)/2^(Sum[cf[[i]], {i, 2, k}] - 1), {k, 2, Length[cf]}], 10, 100]

CROSSREFS

Cf. A120028.

Sequence in context: A132180 A126191 A070883 this_sequence A133110 A086270 A104712

Adjacent sequences: A120026 A120027 A120028 this_sequence A120030 A120031 A120032

KEYWORD

cons,nonn

AUTHOR

Joseph Biberstine (jrbibers(AT)indiana.edu), Jun 04 2006

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Last modified August 29 14:50 EDT 2008. Contains 143238 sequences.


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