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A119719 Continued fraction expansion of the value (mod 1) where ?(x)-x attains its global maximum. 0
0, 1, 3, 1, 4 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

?(x) is Minkowski's question mark function. Note ?(x)-x is odd and has period 1. Finding the maximum of ?(x)-x difficult; fractal local maxima abound. Given that this continued fraction expansion represents the real a, we note the global minimum of ?(x)-x occurs (symmetrically across x=1/2) at 1-a (mod 1). We expect even entries will remain near (if not at) 1 and odd entries will grow very slowly (perhaps not monotonically).

LINKS

Index entries for Minkowski's question mark function

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

EXAMPLE

a = [0;1,3,1,4,..?..]

CROSSREFS

Sequence in context: A128777 A067009 A110790 * A125162 A174382 A123730

Adjacent sequences:  A119716 A119717 A119718 * A119720 A119721 A119722

KEYWORD

cofr,hard,more,nonn

AUTHOR

Joseph Biberstine (jrbibers(AT)indiana.edu), Jun 13 2006

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.