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%I #18 Oct 15 2017 21:11:25
%S 0,4,13,29,51,79,114,154,202,255,315,381,453,531,616,707,805,908,1018,
%T 1135,1257,1386,1521,1662,1810,1964,2124,2291,2464,2643,2828,3020,
%U 3217,3422,3632,3849,4072,4301,4537,4779,5027,5282,5542,5809,6083,6362,6648
%N Ceiling(Pi*n^2).
%C Old name was "a(n)=ceiling[area of a circle of radius n]".
%H Vincenzo Librandi, <a href="/A135039/b135039.txt">Table of n, a(n) for n = 0..1000</a>
%t Ceiling[Pi Range[50]^2] (* _Harvey P. Dale_, Oct 10 2011 *)
%Y Cf. A066643.
%K nonn,easy
%O 0,2
%A _Mohammad K. Azarian_, Feb 29 2008
%E New name (using explicit formula), _Joerg Arndt_, Feb 19 2013
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