A021018 Decimal expansion of 1/14.

0, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1, 4, 2, 8, 5, 7, 1

Offset

0,2

Links

Table of n, a(n) for n=0..98.

Index entries for periodic sequences.

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

Formula

G.f.: x*(7 - 6*x + 3*x^2 + 5*x^3)/(1 - x + x^3 - x^4). - Charles R Greathouse IV, May 25 2026

Example

0.0714285714285...

Mathematica

First[RealDigits[1/14, 10, 100, -1]] (* Paolo Xausa, Sep 16 2024 *)

Prog

(PARI) a(n)=if(n, 488579\9^(n%6)%9, 0) \\ Charles R Greathouse IV, May 25 2026

Crossrefs

Cf. A020806.

Sequence in context: A011450 A231015 A183031 * A010145 A199388 A201750

Adjacent sequences: A021015 A021016 A021017 * A021019 A021020 A021021

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved