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A202108 Expansion of 4/sqrt(phi) in base phi, where phi=(1+sqrt(5))/2. 1
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 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

4/sqrt(phi) = 3.14460551102... is an approximation to Pi obtained by dividing a square into 16 parts.

LINKS

Table of n, a(n) for n=2..112.

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 A190610

Adjacent sequences:  A202105 A202106 A202107 * A202109 A202110 A202111

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

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Last modified September 19 08:05 EDT 2021. Contains 347556 sequences. (Running on oeis4.)