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A022839 Beatty sequence for sqrt(5). 17
2, 4, 6, 8, 11, 13, 15, 17, 20, 22, 24, 26, 29, 31, 33, 35, 38, 40, 42, 44, 46, 49, 51, 53, 55, 58, 60, 62, 64, 67, 69, 71, 73, 76, 78, 80, 82, 84, 87, 89, 91, 93, 96, 98, 100, 102, 105, 107, 109, 111, 114, 116, 118, 120, 122, 125, 127, 129, 131, 134, 136 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..10000

R. L. Graham, S. Lin and C.-S. Lin, Spectra of numbers, Math. Mag. 51 (1978), 174-176.

Index entries for sequences related to Beatty sequences

FORMULA

a(n) = floor(n*sqrt(5)). - G. C. Greubel, Sep 28 2018

MAPLE

a:=n->floor(n*sqrt(5)): seq(a(n), n=1..70); # Muniru A Asiru, Sep 28 2018

MATHEMATICA

With[{c=Sqrt[5]}, Floor[c*Range[70]]] (* Harvey P. Dale, Mar 19 2012 *)

PROG

(MAGMA) [Floor(n*Sqrt(5)): n in [1..60]]; // Vincenzo Librandi, Oct 22 2011

(PARI) vector(60, n, floor(n*sqrt(5))) \\ G. C. Greubel, Sep 28 2018

CROSSREFS

Cf. A026262; complement of A108598.

Sequence in context: A190327 A241176 A184809 * A193766 A262773 A186152

Adjacent sequences:  A022836 A022837 A022838 * A022840 A022841 A022842

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 8 19:29 EDT 2020. Contains 336298 sequences. (Running on oeis4.)