A021686 Decimal expansion of 1/682.

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

Offset

0,4

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..5000

Index entries for periodic sequences, period 30.

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

Example

0.00146627565982404692082111436950146627565982404692082111436950146627565982....

Mathematica

Join[{0, 0}, RealDigits[1/682, 10, 120][[1]]] (* or *) PadRight[{0}, 120, {5, 0, 1, 4, 6, 6, 2, 7, 5, 6, 5, 9, 8, 2, 4, 0, 4, 6, 9, 2, 0, 8, 2, 1, 1, 1, 4, 3, 6, 9}] (* Harvey P. Dale, May 02 2017 *)

Prog

(Magma) pi:=Pi(RealField(110)); [0, 0] cat Reverse(Intseq(Floor((1/682)*10^100))); // Vincenzo Librandi, May 03 2017
(PARI) a(n)=if(n, 963411128029640428956572664105\10^(n%30)%10, 0) \\ Charles R Greathouse IV, Jun 01 2026
(PARI) 1/682. \\ Charles R Greathouse IV, Jun 01 2026

Crossrefs

Sequence in context: A119858 A381684 A130753 * A019923 A019800 A349701

Adjacent sequences: A021683 A021684 A021685 * A021687 A021688 A021689

Keyword

nonn,cons,easy,changed

Author

N. J. A. Sloane

Status

approved