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A021482
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Decimal expansion of 1/478.
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0
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0, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5, 0, 2, 0, 9, 2, 0, 5
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OFFSET
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0,3
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LINKS
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Table of n, a(n) for n=0..98.
Index entries for linear recurrences with constant coefficients, signature (0,0,0,0,0,0,1).
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FORMULA
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a(n) = (1/49)*{-29*(n mod 7)+20*[(n+1) mod 7]+55*[(n+2) mod 7]-57*[(n+3) mod 7]+20*[(n+4) mod 7]-8*[(n+5) mod 7]+41*[(n+6) mod 7]}-5*[C(2*n,n) mod 2], with n>=0. [Paolo P. Lava, Nov 11 2009]
a(n) = a(n-7) for n > 7.
G.f.: -x^2*(5*x^5 + 2*x^3 + 9*x^2 + 2)/(x^7 - 1). (End)
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MATHEMATICA
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Join[{0, 0}, RealDigits[1/478, 10, 120][[1]]] (* or *) PadRight[{0}, 120, {5, 0, 2, 0, 9, 2, 0}] (* Harvey P. Dale, Jul 20 2013 *)
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CROSSREFS
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Sequence in context: A197583 A021831 A248897 * A199287 A198735 A071120
Adjacent sequences: A021479 A021480 A021481 * A021483 A021484 A021485
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KEYWORD
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nonn,cons
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AUTHOR
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N. J. A. Sloane.
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STATUS
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approved
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