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%I A202305 #13 Sep 08 2022 08:46:01
%S A202305 0,2,3,3,4,5,5,5,6,6,7,7,7,8,8,8,8,9,9,9,10,10,10,10,10,11,11,11,11,
%T A202305 12,12,12,12,12,13,13,13,13,13,13,14,14,14,14,14,15,15,15,15,15,15,15,
%U A202305 16,16,16,16,16,16,17,17,17,17,17,17,17,18
%N A202305 Floor(sqrt(5*n)).
%H A202305 Vincenzo Librandi, <a href="/A202305/b202305.txt">Table of n, a(n) for n = 0..10000</a>
%F A202305 a(n) = A000196(5n).
%t A202305 Table[Floor[Sqrt[5n]],{n,0,80}]
%o A202305 (Magma) [Floor(Sqrt(5*n)) : n in [0..80]]
%o A202305 (PARI) a(n)=sqrtint(5*n) \\ _Charles R Greathouse IV_, Jan 17 2012
%Y A202305 Cf. A172471, A202304.
%K A202305 nonn,easy
%O A202305 0,2
%A A202305 _Vincenzo Librandi_, Jan 17 2012

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