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URL: https://oeis.org/A389314

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A389314

Decimal expansion of 1/3432.

1

0, 0, 0, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2, 9, 1, 3, 7, 5, 2

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

0,4

COMMENTS

For n>=3, Period 6: repeat [2, 9, 1, 3, 7, 5].

LINKS

Jason Bard, Table of n, a(n) for n = 0..1002

Michael Ian Shamos, Shamos's Catalog of the Real Numbers, (2011). See p. 27.

Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,1).

FORMULA

Equals Product_{k>=8} (1 - (7/k)^2).

Equals A020821 * A010701 * A010680 * A021017.

a(n) = a(n-6) for n >= 9.

If A154127 = x is interpreted as constant, then the present constant equals (x-1/8)/3. - Hugo Pfoertner, Sep 30 2025

EXAMPLE

0.000291375291375291375291375291375291375291375291375291...

MATHEMATICA

First[RealDigits[1/3432, 10, 100, -1]] (* or *)

Join[{0, 0, 0}, LinearRecurrence[{0, 0, 0, 0, 0, 1}, {2, 9, 1, 3, 7, 5}, 100]]

CROSSREFS

Cf. A010680, A010701, A020821, A021017, A021347, A154127.

Sequence in context: A190411 A190142 A173995 * A272868 A378352 A074950

Adjacent sequences: A389311 A389312 A389313 * A389315 A389316 A389317

KEYWORD

nonn,cons,easy

AUTHOR

Jason Bard, Sep 29 2025

STATUS

approved