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 A021670 Decimal expansion of 1/666. 0
 0, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1, 5, 0, 1 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS Burkard Polster, Juggling, maths and a beautiful mind Index entries for linear recurrences with constant coefficients, signature (0,0,1). MATHEMATICA Join[{0, 0}, RealDigits[1/666, 10, 120][[1]]] (* or *) PadRight[{0, 0, 1}, 111, {5, 0, 1}] (* Harvey P. Dale, Oct 17 2011 *) PROG (PARI) a(n)=if(n, [5, 0, 1][n%3+1], 0) \\ Charles R Greathouse IV, Jan 20 2012 CROSSREFS Sequence in context: A274619 A230844 A054672 * A060081 A197515 A326185 Adjacent sequences:  A021667 A021668 A021669 * A021671 A021672 A021673 KEYWORD nonn,cons,easy AUTHOR STATUS approved

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Last modified November 27 03:56 EST 2021. Contains 349345 sequences. (Running on oeis4.)