A176325 Decimal expansion of (5+3*sqrt(3))/2.

5, 0, 9, 8, 0, 7, 6, 2, 1, 1, 3, 5, 3, 3, 1, 5, 9, 4, 0, 2, 9, 1, 1, 6, 9, 5, 1, 2, 2, 5, 8, 8, 0, 8, 5, 5, 0, 4, 1, 4, 2, 0, 7, 8, 8, 0, 7, 1, 5, 5, 7, 0, 9, 4, 2, 0, 8, 3, 7, 1, 0, 4, 6, 9, 1, 7, 7, 8, 9, 9, 5, 2, 5, 3, 6, 3, 2, 0, 0, 0, 5, 5, 6, 2, 1, 7, 1, 9, 2, 8, 0, 1, 3, 5, 8, 7, 2, 8, 6, 3, 5, 1, 3, 4, 3

Offset

1,1

Comments

Continued fraction expansion of (5+3*sqrt(3))/2 is A010721.

a(n) = A104956(n) for n > 2.

Links

G. C. Greubel, Table of n, a(n) for n = 1..1000

Example

5.09807621135331594029...

Maple

evalf( (5+3*sqrt(3))/2, 100); # G. C. Greubel, Dec 05 2019

Mathematica

RealDigits[(5+3Sqrt[3])/2, 10, 120][[1]] (* Harvey P. Dale, May 20 2011 *)

Prog

(PARI) default(realprecision, 100); (5+3*sqrt(3))/2 \\ G. C. Greubel, Dec 05 2019
(Magma) SetDefaultRealField(RealField(100)); (5+3*Sqrt(3))/2; // G. C. Greubel, Dec 05 2019
(Sage) numerical_approx((5+3*sqrt(3))/2, digits=100) # G. C. Greubel, Dec 05 2019

Crossrefs

Cf. A002194 (decimal expansion of sqrt(3)), A104956 (decimal expansion of (3*sqrt(3))/2), A010721 (repeat 5, 10).

Sequence in context: A101115 A200633 A196820 * A275792 A010481 A347681

Adjacent sequences: A176322 A176323 A176324 * A176326 A176327 A176328

Keyword

cons,nonn

Author

Klaus Brockhaus, Apr 15 2010

Status

approved