A021721 Decimal expansion of 1/717.

0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0, 0, 1, 3, 9, 4, 7, 0

Offset

0,4

Links

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

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

Formula

From Chai Wah Wu, Apr 22 2024: (Start)

a(n) = a(n-7) for n > 6.

G.f.: x^2*(-7*x^4 - 4*x^3 - 9*x^2 - 3*x - 1)/(x^7 - 1). (End)

Example

0.00139470013947001394700139470013947...

Crossrefs

Sequence in context: A307238 A161773 A212992 * A212002 A199452 A249414

Adjacent sequences: A021718 A021719 A021720 * A021722 A021723 A021724

Keyword

nonn,cons,easy

Author

N. J. A. Sloane

Status

approved