A021508 - OEIS

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A021508

Decimal expansion of 1/504.

0, 0, 1, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6, 9, 8, 4, 1, 2, 6

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

OFFSET

0,4

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (2,-2,1).

FORMULA

From Chai Wah Wu, Aug 10 2020: (Start)

a(n) = 2*a(n-1) - 2*a(n-2) + a(n-3) for n > 5.

G.f.: x^2*(-5*x^3 + 8*x^2 - 7*x - 1)/((x - 1)*(x^2 - x + 1)). (End)

CROSSREFS

Sequence in context: A086306 A094139 A330380 * A346931 A199862 A019720

Adjacent sequences: A021505 A021506 A021507 * A021509 A021510 A021511

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane.

STATUS

approved

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