A021732 - OEIS

A021732

Decimal expansion of 1/728.

0, 0, 1, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6, 3, 7, 3, 6, 2, 6

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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, Apr 22 2024: (Start)

a(n) = a(n-1) - a(n-3) + a(n-4) for n > 6.

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

MATHEMATICA

First[RealDigits[1/728, 10, 100, -1]] (* Paolo Xausa, Jul 05 2024 *)