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A017928 Powers of sqrt(8) rounded down. 3

%I #21 Sep 08 2022 08:44:43

%S 1,2,8,22,64,181,512,1448,4096,11585,32768,92681,262144,741455,

%T 2097152,5931641,16777216,47453132,134217728,379625062,1073741824,

%U 3037000499,8589934592,24296003999,68719476736

%N Powers of sqrt(8) rounded down.

%H Vincenzo Librandi, <a href="/A017928/b017928.txt">Table of n, a(n) for n = 0..1000</a>

%F a(n) = A017910(3n). - _R. J. Mathar_, Apr 28 2008

%t Floor[(Sqrt[8])^Range[0,40]] (* _Harvey P. Dale_, Jun 20 2011 *)

%o (PARI) a(n)=sqrtint(8^n) \\ _Charles R Greathouse IV_, Nov 18 2011

%o (Magma) [Floor(Sqrt(8^n)): n in [0..40]]; // _Vincenzo Librandi_, Nov 20 2011

%Y Cf. A017910.

%K nonn

%O 0,2

%A _N. J. A. Sloane_

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Last modified August 27 05:29 EDT 2024. Contains 375462 sequences. (Running on oeis4.)