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A017955 Powers of sqrt(17) rounded down. 1

%I #15 Sep 08 2022 08:44:43

%S 1,4,17,70,289,1191,4913,20256,83521,344365,1419857,5854220,24137569,

%T 99521746,410338673,1691869691,6975757441,28761784747,118587876497,

%U 488950340714,2015993900449,8312155792152

%N Powers of sqrt(17) rounded down.

%H Vincenzo Librandi, <a href="/A017955/b017955.txt">Table of n, a(n) for n = 0..800</a>

%F a(n) = floor(sqrt(17^n)). - _Vincenzo Librandi_, Jun 24 2011

%o (Magma) [Floor(Sqrt(17^n)): n in [0..30]]: // _Vincenzo Librandi_, Jun 24 2011

%o (PARI) a(n)=sqrtint(17^n) \\ _Charles R Greathouse IV_, Nov 18 2011

%Y Cf. A010473 (sqrt(17)).

%K nonn

%O 0,2

%A _N. J. A. Sloane_

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)