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 A022842 Beatty sequence for sqrt(8). 21
 2, 5, 8, 11, 14, 16, 19, 22, 25, 28, 31, 33, 36, 39, 42, 45, 48, 50, 53, 56, 59, 62, 65, 67, 70, 73, 76, 79, 82, 84, 87, 90, 93, 96, 98, 101, 104, 107, 110, 113, 115, 118, 121, 124, 127, 130, 132, 135, 138, 141, 144, 147, 149, 152, 155, 158, 161, 164 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..10000 N. J. A. Sloane, Families of Essentially Identical Sequences, Mar 24 2021 (Includes this sequence) Index entries for sequences related to Beatty sequences FORMULA a(n) = floor(2*n*sqrt(2)). - Michel Marcus, Oct 31 2017 MAPLE a:=n->floor(2*n*sqrt(2)): seq(a(n), n=1..60); # Muniru A Asiru, Sep 28 2018 MATHEMATICA Table[Floor[2*n*Sqrt[2]], {n, 1, 60}] (* G. C. Greubel, Sep 28 2018 *) PROG (Magma) [Floor(n*Sqrt(8)): n in [1..60]]; // Vincenzo Librandi, Oct 24 2011 (PARI) vector(80, n, floor(2*n*sqrt(2))) \\ G. C. Greubel, Sep 28 2018 (Python) from sympy import integer_nthroot def A022842(n): return integer_nthroot(8*n**2, 2)[0] # Chai Wah Wu, Mar 16 2021 CROSSREFS A bisection of A001951. Cf. A010466. Sequence in context: A282457 A329848 A059560 * A356057 A189525 A189369 Adjacent sequences: A022839 A022840 A022841 * A022843 A022844 A022845 KEYWORD nonn,easy AUTHOR Clark Kimberling EXTENSIONS Offset changed from 0 to 1 by Vincenzo Librandi, Oct 24 2011 STATUS approved

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Last modified September 24 16:50 EDT 2023. Contains 365579 sequences. (Running on oeis4.)