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A172327 Floor(n*(sqrt(11)+sqrt(5))). 1
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 (list; graph; refs; listen; history; text; internal format)
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: A183989 A219529 A278397 * A272666 A190323 A035108

Adjacent sequences:  A172324 A172325 A172326 * A172328 A172329 A172330

KEYWORD

nonn,easy,less

AUTHOR

Vincenzo Librandi, Feb 01 2010

STATUS

approved

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Last modified May 28 16:24 EDT 2017. Contains 287241 sequences.