A172273 a(n) = floor(n*(sqrt(11) - sqrt(2))).

0, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 117, 119, 121, 123, 125

Offset: 0

Author

Vincenzo Librandi, Jan 30 2010

Keywords

• nonn
• easy

Comments

Initially similar to A038124 because sqrt(11)-sqrt(2) = 1.90241122... is close to A065421. - R. J. Mathar, Feb 05 2010

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..1000
• Index entries for sequences related to Beatty sequences

Crossrefs

Cf. A172264, A172266-A172270, A172272-A172278.

Programs

Magma

[Floor(n*(Sqrt(11)-Sqrt(2))): n in [0..80]]; // Vincenzo Librandi, Aug 01 2013

Mathematica

With[{c = Sqrt[11] - Sqrt[2]}, Floor[c Range[0, 80]]] (* Vincenzo Librandi, Aug 01 2013 *)

PARI

vector(100, n, n--; floor(n*(sqrt(11) - sqrt(2)))) \\ G. C. Greubel, Aug 18 2018