A228176 Floor(n*(sqrt(10)+sqrt(3))).

0, 4, 9, 14, 19, 24, 29, 34, 39, 44, 48, 53, 58, 63, 68, 73, 78, 83, 88, 92, 97, 102, 107, 112, 117, 122, 127, 132, 137, 141, 146, 151, 156, 161, 166, 171, 176, 181, 185, 190, 195, 200, 205, 210, 215, 220, 225, 230, 234, 239, 244, 249, 254, 259, 264, 269, 274

Offset: 0

Author

Vincenzo Librandi, Aug 15 2013

Keywords

• nonn
• easy

Comments

a(n) = integer part of n*4.894328468..., where the constant is the largest root of x^4 -26*x^2 +49.

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(10)+Sqrt(3))): n in [0..60]];

Mathematica

With[{c = Sqrt[10] + Sqrt[3]}, Floor[c Range[0, 60]]]