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A092763 a(n) = floor(3^n / n). 11

%I #11 Sep 08 2022 08:45:13

%S 3,4,9,20,48,121,312,820,2187,5904,16104,44286,122640,341640,956593,

%T 2690420,7596480,21523360,61171656,174339220,498112057,1426411800,

%U 4093181688,11767897353,33891544377,97764070320,282429536481

%N a(n) = floor(3^n / n).

%C a(n) = (A000244(n) - A066601(n))/n.

%H Vincenzo Librandi, <a href="/A092763/b092763.txt">Table of n, a(n) for n = 1..300</a>

%t Table[Floor[3^n/n],{n,30}] (* _Harvey P. Dale_, Jun 13 2013 *)

%o (Magma)[Floor(3^n / n): n in [1..45]]; // _Vincenzo Librandi_, May 08 2011

%Y Cf. A000799.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Apr 13 2004

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)