%I #11 Sep 08 2022 08:44:43

%S 1,4,15,59,225,872,3375,13072,50625,196070,759375,2941047,11390625,

%T 44115701,170859375,661735514,2562890625,9926032709,38443359375,

%U 148890490632,576650390625,2233357359475,8649755859375

%N Powers of sqrt(15) rounded up.

%H Vincenzo Librandi, <a href="/A017951/b017951.txt">Table of n, a(n) for n = 0..800</a>

%t Ceiling[(Sqrt[15])^Range[0,40]] (* _Vincenzo Librandi_, Nov 21 2011 *)

%o (Magma) [Ceiling(Sqrt(15^n)): n in [0..30]]; // _Vincenzo Librandi_, Nov 21 2011

%K nonn

%O 0,2

%A _N. J. A. Sloane_