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 A010704 Period 2: repeat (3,6). 8
 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Continued fraction expansion of A176105. - R. J. Mathar, Mar 08 2012 Digital roots of A007283. - Bruno Berselli, Nov 22 2018 Decimal expansion of 4/11. - Franklin T. Adams-Watters, Nov 28 2018 LINKS Table of n, a(n) for n=0..80. Index entries for linear recurrences with constant coefficients, signature (0,1). FORMULA G.f. 3*(1 + 2*x)/((1 - x)*(1 + x)). - R. J. Mathar, Nov 21 2011 From Reinhard Zumkeller, Jul 03 2012: (Start) a(n) = 3*A000034(n). a(n) = A213999(n,2). (End) a(n + 1) = 9 - a(n). - David A. Corneth, Nov 29 2018 a(n) = 2 + 2^(1 - (-1)^n). - Vincenzo Librandi, Feb 28 2020 MAPLE seq(op([3, 6]), n=1..60); # Muniru A Asiru, Nov 29 2018 MATHEMATICA PadRight[{}, 120, {3, 6}] (* Harvey P. Dale, Dec 12 2012 *) PROG (PARI) a(n)=3+n%2*3 \\ Charles R Greathouse IV, Dec 21 2011 (Haskell) a010704 n = (* 3) . a000034 a010704_list = cycle [3, 6] -- Reinhard Zumkeller, Jul 03 2012 (GAP) Flat(List([1..60], n->[3, 6])); # Muniru A Asiru, Nov 29 2018 (Magma) &cat [[3, 6]^^50]; // Vincenzo Librandi, Feb 28 2020 CROSSREFS Cf. A000034, A007283, A176105, A213999. Sequence in context: A124860 A182412 A038138 * A338947 A323503 A303129 Adjacent sequences: A010701 A010702 A010703 * A010705 A010706 A010707 KEYWORD nonn,easy,changed AUTHOR N. J. A. Sloane STATUS approved

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Last modified February 21 10:54 EST 2024. Contains 370233 sequences. (Running on oeis4.)