A021307 - OEIS

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A021307

Decimal expansion of 1/303.

0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3, 3, 0, 0, 3

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OFFSET

0,3

LINKS

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

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

FORMULA

From Chai Wah Wu, Apr 18 2024: (Start)

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

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

Equals 3*A021913. - Hugo Pfoertner, Apr 18 2024

EXAMPLE