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A171982 Beatty sequence for sqrt(11). 6
3, 6, 9, 13, 16, 19, 23, 26, 29, 33, 36, 39, 43, 46, 49, 53, 56, 59, 63, 66, 69, 72, 76, 79, 82, 86, 89, 92, 96, 99, 102, 106, 109, 112, 116, 119, 122, 126, 129, 132, 135, 139, 142, 145, 149, 152, 155, 159, 162, 165, 169, 172, 175, 179, 182, 185, 189, 192, 195, 198 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

FORMULA

a(n) = floor(n*sqrt(11)). - Jon E. Schoenfield, Jun 18 2010

MATHEMATICA

With[{c = Sqrt[11]}, Floor[c #]& / @Range[1, 80]] (* Vincenzo Librandi, Aug 01 2013 *)

PROG

(PARI) a(n)=sqrtint(11*n^2) \\ Charles R Greathouse IV, Dec 28 2011

(MAGMA) [Isqrt(11*n^2): n in [1..80]]; // Vincenzo Librandi, Aug 01 2013

CROSSREFS

Sequence in context: A190363 A059550 A080081 * A066343 A184909 A289037

Adjacent sequences:  A171979 A171980 A171981 * A171983 A171984 A171985

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jan 21 2010

STATUS

approved

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Last modified February 19 13:25 EST 2020. Contains 332044 sequences. (Running on oeis4.)