The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A022839 Beatty sequence for sqrt(5). 29
 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 (PARI) a(n)=sqrtint(5*n^2) \\ Charles R Greathouse IV, Jan 24 2022 (Python) from math import isqrt def A022839(n): return isqrt(5*n**2) # Chai Wah Wu, Sep 07 2022 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified February 21 09:29 EST 2024. Contains 370228 sequences. (Running on oeis4.)