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A021081 Decimal expansion of 1/77. 0

%I

%S 0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,

%T 8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,

%U 2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2,9,8,7,0,1,2

%N Decimal expansion of 1/77.

%F From _Chai Wah Wu_, Jun 05 2016: (Start)

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

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

%K nonn,easy,cons

%O 0,3

%A _N. J. A. Sloane_.

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Last modified July 6 23:56 EDT 2020. Contains 335484 sequences. (Running on oeis4.)