%I #9 Sep 08 2022 08:45:50

%S 0,6,13,20,27,34,41,48,55,62,69,76,83,89,96,103,110,117,124,131,138,

%T 145,152,159,166,173,179,186,193,200,207,214,221,228,235,242,249,256,

%U 263,269,276,283,290,297,304,311,318,325,332,339,346

%N Floor(n*(sqrt(13)+sqrt(11))).

%C Also integer part of n*6.9221760658..., where the constant is the largest root of x^4 -48*x^2 +4.

%H Vincenzo Librandi, <a href="/A172330/b172330.txt">Table of n, a(n) for n = 0..1000</a>

%t With[{c = Sqrt[13] + Sqrt[11]}, Floor[c Range[0, 70]]] (* _Vincenzo Librandi_, Aug 01 2013 *)

%o (Magma) [Floor(n*(Sqrt(13)+Sqrt(11))): 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