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 A010676 Period 2: repeat [0, 5]. 0
 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0, 5, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Index entries for linear recurrences with constant coefficients, signature (0,1). FORMULA a(n) = 5/2*(1-(-1)^n) = 5*(n mod 2). - Paolo P. Lava, Oct 20 2006 G.f.: 5*x/((1-x)*(1+x)). - R. J. Mathar, Nov 21 2011 a(n) = a(n-2). - Wesley Ivan Hurt, Aug 19 2022 MATHEMATICA PadRight[{}, 120, {0, 5}] (* Harvey P. Dale, Feb 18 2013 *) PROG (Magma) &cat [[0, 5]^^50]; // Bruno Berselli, Dec 10 2015 (PARI) a(n)=n%2*5 \\ Charles R Greathouse IV, Jul 23 2016 CROSSREFS Sequence in context: A199092 A167260 A137520 * A071873 A036478 A059628 Adjacent sequences: A010673 A010674 A010675 * A010677 A010678 A010679 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified March 28 17:15 EDT 2023. Contains 361596 sequences. (Running on oeis4.)