A172328 a(n) = floor(n*(sqrt(11)+sqrt(3))).

0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 106, 111, 116, 121, 126, 131, 136, 141, 146, 151, 156, 161, 166, 171, 176, 181, 186, 191, 196, 201, 206, 212, 217, 222, 227, 232, 237, 242, 247, 252

Offset: 0

Author

Vincenzo Librandi, Feb 01 2010

Keywords

• nonn
• easy
• less

Comments

Also integer part of n*5.0486755979..., where the constant is the largest root of x^4 -28*x^2 +64.

Links

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

Crossrefs

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

Programs

Magma

[Floor(n*(Sqrt(11)+Sqrt(3))): n in [0..60]];

Mathematica

With[{c = Sqrt[11] + Sqrt[3]}, Floor[c Range[0, 70]]] (* Vincenzo Librandi, Aug 01 2013 *)