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A202108
Expansion of 4/sqrt(phi) in base phi, where phi=(1+sqrt(5))/2.
2
1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0
OFFSET
2,1
COMMENTS
4/sqrt(phi) = 3.14460551102... is an approximation to Pi obtained by dividing a square into 16 parts.
EXAMPLE
sqrt(16/((sqrt(5)+1)/2)) = 10.00100101010100101010000000000010010000101010000000010000100000\
10000100101001000100101001000100010010000001010... in base phi.
MATHEMATICA
RealDigits[Sqrt[16/GoldenRatio], GoldenRatio, 111][[1]]
CROSSREFS
Cf. A202142.
Sequence in context: A290098 A102243 A173859 * A287530 A104108 A267056
KEYWORD
base,cons,nonn
AUTHOR
Ville Takio, Dec 11 2011
EXTENSIONS
Entry revised by N. J. A. Sloane, Dec 12 2011 and Apr 03 2016.
STATUS
approved