This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A180448 #19 Jul 03 2025 14:51:17 %S A180448 2,7,29,37,41,59,79,89,197,281,311,431,491,571,607,617,673,683,751, %T A180448 997,1019,1051,1117,1217,1229,1297,1321,1367,1571,1583,1607,1657,1669, %U A180448 1871,1949,2309,2447,2503,2531,2687,2903,3413,3613,3739,3881,3929,4057,4073,4219 %N A180448 Primes of the form floor(k^sqrt(2)). %H A180448 Charles R Greathouse IV, <a href="/A180448/b180448.txt">Table of n, a(n) for n = 1..10000</a> %F A180448 A134886 INTERSECT A000040. %t A180448 Select[Floor[Range[0,500]^Sqrt[2]],PrimeQ] (* _Harvey P. Dale_, May 20 2011 *) %o A180448 (PARI) for(n=1, 154392, if(ispseudoprime(t=floor(n^sqrt(2))), print1(t", "))); v \\ _Charles R Greathouse IV_, Feb 18 2011 %K A180448 easy,nonn %O A180448 1,1 %A A180448 _William A. Tedeschi_, Sep 07 2010 %E A180448 Formula rewritten by _R. J. Mathar_, Sep 09 2010