A021576 - OEIS

A021576

Decimal expansion of 1/572.

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

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OFFSET

0,4

LINKS

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

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

FORMULA

From Chai Wah Wu, Jun 13 2020: (Start)

a(n) = a(n-1) - a(n-3) + a(n-4) for n > 5.

G.f.: x^2*(-5*x^3 + 3*x^2 - 6*x - 1)/(x^4 - x^3 + x - 1). (End)

EXAMPLE

0.0017482517482517482517482517482517482517482517482517...

MATHEMATICA

First[RealDigits[1/572, 10, 100, -1]] (* Paolo Xausa, Aug 23 2025 *)

realDigitsRecip[572] (* The realDigitsRecip program is at A021200 *) (* or *) PadRight[{0, 0}, 120, {2, 5, 1, 7, 4, 8}] (* Harvey P. Dale, Aug 27 2025 *)

CROSSREFS

Sequence in context: A389398 A195384 A394107 * A222183 A010509 A161166

Adjacent sequences: A021573 A021574 A021575 * A021577 A021578 A021579

KEYWORD

nonn,cons,easy

AUTHOR

N. J. A. Sloane

STATUS

approved