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 A180452 #21 Jul 03 2025 14:52:50 %S A180452 3,7,11,17,23,31,59,107,151,167,239,367,439,491,601,631,691,919,1063, %T A180452 2309,2909,3083,3823,4019,4219,4423,5431,5507,5659,5813,6047,7451, %U A180452 9551,10037,10837,10939,14071,16673,17291,19073,19993,21067,21613,25163 %N A180452 Primes of the form floor(k^sqrt(Pi)). %H A180452 Charles R Greathouse IV, <a href="/A180452/b180452.txt">Table of n, a(n) for n = 1..10000</a> %t A180452 Select[Floor[Range[350]^Sqrt[Pi]],PrimeQ] (* _Harvey P. Dale_, Apr 23 2022 *) %o A180452 (PARI) for(n=1, 1e4, if(ispseudoprime(t=floor(n^sqrt(Pi))), print1(t", "))); v \\ _Charles R Greathouse IV_, Feb 18 2011 %Y A180452 A134707 INTERSECT A000040. %K A180452 easy,nonn %O A180452 1,1 %A A180452 _William A. Tedeschi_, Sep 07 2010 %E A180452 Formula rewritten by _R. J. Mathar_, Sep 09 2010