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Ceiling(n*sqrt(12)).
1

%I #10 Sep 08 2022 08:45:59

%S 0,4,7,11,14,18,21,25,28,32,35,39,42,46,49,52,56,59,63,66,70,73,77,80,

%T 84,87,91,94,97,101,104,108,111,115,118,122,125,129,132,136,139,143,

%U 146,149,153,156,160,163,167,170,174,177,181,184,188

%N Ceiling(n*sqrt(12)).

%H Vincenzo Librandi, <a href="/A198269/b198269.txt">Table of n, a(n) for n = 0..10000</a>

%t Ceiling[Sqrt[12]Range[0,60]] (* _Harvey P. Dale_, Aug 27 2013 *)

%o (Magma) [Ceiling(n*Sqrt(12)): n in [0..60]]

%Y Cf. A047345, A047355, A194028.

%K nonn,easy

%O 0,2

%A _Vincenzo Librandi_, Oct 24 2011