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 A190343 #22 Jun 08 2025 14:19:33
%S A190343 1,1,3,8,25,88,343,1448,6561,31622,161051,861979,4826809,28172943,
%T A190343 170859375,1073741824,6975757441,46753733110,322687697779,
%U A190343 2289733608959,16679880978201,124577080440588,952809757913927,7454684703958210,59604644775390625,486594112179717592
%N A190343 a(n) = floor(n^((n-1)/2)).
%H A190343 Bruno Berselli, <a href="/A190343/b190343.txt">Table of n, a(n) for n = 1..200</a>
%e A190343 a(6) = 88 = floor(6^(5/2)).
%t A190343 Table[Floor[n^((n - 1)/2)], {n, 40}] (* _Vincenzo Librandi_, Mar 26 2013 *)
%o A190343 (Magma) [Floor(n^((n-1)/2)): n in [1..24]];
%o A190343 (PARI) for(n=1,20, print1(floor(n^((n-1)/2)), ", ")) \\ _G. C. Greubel_, Dec 30 2017
%o A190343 (Python)
%o A190343 from math import isqrt
%o A190343 def A190343(n): return isqrt(n**(n-1)) # _Chai Wah Wu_, Jun 08 2025
%Y A190343 Cf. A066642, A075364.
%K A190343 nonn
%O A190343 1,3
%A A190343 _Bruno Berselli_, May 12 2011