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A180448 Primes of the form floor(n^sqrt(2)). 1

%I #15 Mar 05 2015 07:46:48

%S 2,7,29,37,41,59,79,89,197,281,311,431,491,571,607,617,673,683,751,

%T 997,1019,1051,1117,1217,1229,1297,1321,1367,1571,1583,1607,1657,1669,

%U 1871,1949,2309,2447,2503,2531,2687,2903,3413,3613,3739,3881,3929,4057,4073,4219

%N Primes of the form floor(n^sqrt(2)).

%H Charles R Greathouse IV, <a href="/A180448/b180448.txt">Table of n, a(n) for n = 1..10000</a>

%F A134886 INTERSECT A000040.

%t Select[Floor[Range[0,500]^Sqrt[2]],PrimeQ] (* _Harvey P. Dale_, May 20 2011 *)

%o (PARI) for(n=1, 154392, if(ispseudoprime(t=floor(n^sqrt(2))), print1(t", "))); v \\ _Charles R Greathouse IV_, Feb 18 2011

%K easy,nonn

%O 1,1

%A _William A. Tedeschi_, Sep 07 2010

%E Formula rewritten by _R. J. Mathar_, Sep 09 2010

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Last modified April 24 15:52 EDT 2024. Contains 371961 sequences. (Running on oeis4.)