A171983 Beatty sequence for sqrt(13).

3, 7, 10, 14, 18, 21, 25, 28, 32, 36, 39, 43, 46, 50, 54, 57, 61, 64, 68, 72, 75, 79, 82, 86, 90, 93, 97, 100, 104, 108, 111, 115, 118, 122, 126, 129, 133, 137, 140, 144, 147, 151, 155, 158, 162, 165, 169, 173, 176, 180, 183, 187, 191, 194, 198, 201, 205

Offset: 1

Author

Vincenzo Librandi, Jan 21 2010

Keywords

• nonn
• easy

Links

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

Crossrefs

Cf. A010470.

Programs

Magma

[Floor(n*Sqrt(13)): n in [1..80]]; // Vincenzo Librandi, Aug 01 2013

Mathematica

f[n_]: = Floor[n Sqrt[13]]; Array[f, 80, 1] (* Vincenzo Librandi, Aug 01 2013 *)

Formula

a(n) = floor(n*sqrt(13)). - Jon E. Schoenfield, Jun 18 2010