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A172327 Floor(n*(sqrt(11)+sqrt(5))). 1

%I #11 Sep 08 2022 08:45:50

%S 0,5,11,16,22,27,33,38,44,49,55,61,66,72,77,83,88,94,99,105,111,116,

%T 122,127,133,138,144,149,155,161,166,172,177,183,188,194,199,205,211,

%U 216,222,227,233,238,244,249,255,260,266,272,277

%N Floor(n*(sqrt(11)+sqrt(5))).

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

%H Vincenzo Librandi, <a href="/A172327/b172327.txt">Table of n, a(n) for n = 0..1000</a>

%t With[{c = Sqrt[11] + Sqrt[5]}, Floor[c Range[0, 70]]] (* _Vincenzo Librandi_, Aug 01 2013 *)

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

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

%K nonn,easy,less

%O 0,2

%A _Vincenzo Librandi_, Feb 01 2010

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Last modified April 29 18:29 EDT 2024. Contains 372114 sequences. (Running on oeis4.)