A172327 Floor(n*(sqrt(11)+sqrt(5))).

0, 5, 11, 16, 22, 27, 33, 38, 44, 49, 55, 61, 66, 72, 77, 83, 88, 94, 99, 105, 111, 116, 122, 127, 133, 138, 144, 149, 155, 161, 166, 172, 177, 183, 188, 194, 199, 205, 211, 216, 222, 227, 233, 238, 244, 249, 255, 260, 266, 272, 277

Offset

0,2

Comments

Also integer part of n*5.5526927678..., where the constant is the largest root of x^4 -32*x^2 +36.

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Mathematica

With[{c = Sqrt[11] + Sqrt[5]}, Floor[c Range[0, 70]]] (* Vincenzo Librandi, Aug 01 2013 *)

Prog

(Magma) [Floor(n*(Sqrt(11)+Sqrt(5))): n in [0..60]];

Crossrefs

Cf. A110117, A172323-A172332, A172334, A172336-A172338.

Sequence in context: A314147 A314148 A314149 * A314150 A314151 A314152

Adjacent sequences: A172324 A172325 A172326 * A172328 A172329 A172330

Keyword

nonn,easy,less

Author

Vincenzo Librandi, Feb 01 2010

Status

approved