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A159642 Decimal expansion of (649 + 36*sqrt(2))/647. 4
1, 0, 8, 1, 7, 8, 0, 0, 4, 3, 6, 5, 5, 9, 9, 9, 1, 0, 6, 2, 7, 0, 2, 6, 3, 9, 7, 8, 4, 7, 2, 2, 5, 5, 2, 2, 5, 3, 9, 1, 8, 2, 1, 0, 0, 0, 7, 9, 3, 7, 7, 1, 4, 5, 3, 8, 3, 9, 8, 1, 5, 2, 5, 5, 9, 0, 0, 5, 6, 6, 2, 5, 8, 4, 6, 1, 5, 7, 0, 0, 9, 7, 9, 8, 8, 5, 8, 4, 1, 5, 9, 5, 6, 0, 7, 3, 4, 3, 0, 6, 9, 8, 3, 7, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Equals lim_{n -> infinity} b(n)/b(n-1) for n mod 3 = {1, 2}, b = A130013.

Equals lim_{n -> infinity} b(n)/b(n-1) for n mod 3 = {0, 2}, b = A159641.

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

FORMULA

Equals (36 + sqrt(2))/(36 - sqrt(2)).

EXAMPLE

(649 + 36*sqrt(2))/647 = 1.08178004365599910627...

MATHEMATICA

RealDigits[(649+36*Sqrt[2])/647, 10, 100][[1]] (* G. C. Greubel, May 10 2018 *)

PROG

(PARI) (649+36*sqrt(2))/647 \\ G. C. Greubel, May 10 2018

(MAGMA) (649+36*Sqrt(2))/647; // G. C. Greubel, May 10 2018

CROSSREFS

Cf. A130013, A159641, A002193 (decimal expansion of sqrt(2)), A159643 (decimal expansion of (1084467+707402*sqrt(2))/647^2).

Sequence in context: A301908 A200277 A242024 * A234614 A246750 A199872

Adjacent sequences:  A159639 A159640 A159641 * A159643 A159644 A159645

KEYWORD

cons,nonn

AUTHOR

Klaus Brockhaus, Apr 21 2009

STATUS

approved

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Last modified February 21 06:40 EST 2019. Contains 320371 sequences. (Running on oeis4.)