OFFSET
0,5
COMMENTS
Start at a(0)=0. Each 0 in the binary expansion corresponds to a step of -1, while a 1 corresponds to a step of +1.
Partial sums of the sequence 2*A121967(n)-1.
The first time a(n) is negative is n=93.
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..5000
EXAMPLE
a(5)=3, and the sixth bit of the Dottie number is 1, so a(6)=4.
On the other hand, the seventh bit of the Dottie number is 0, so a(7)=3.
MATHEMATICA
Accumulate[RealDigits[FindRoot[Cos[x] == x, {x, 0}, WorkingPrecision -> 1000][[1, -1]], 2][[1]] 2 - 1]
CROSSREFS
KEYWORD
sign,base
AUTHOR
Ben Branman, Apr 11 2012
STATUS
approved