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 A062871 #18 Jun 20 2024 08:07:12
%S A062871 1,1,2,12,78,612,5795,64425,822470,11856945,190494094,3374719083,
%T A062871 65351559893,1373320643022,31124359701926,756718320351008,
%U A062871 19645797269948963,542437979097898912,15871685747774947592
%N A062871 a(n) is the integer part of the geometric mean of n! and n^n.
%H A062871 Harry J. Smith, <a href="/A062871/b062871.txt">Table of n, a(n) for n = 0..100</a>
%t A062871 Floor[Sqrt[n!*n^n]]
%o A062871 (PARI) a(n)={sqrtint(n! * n^n)} \\ _Harry J. Smith_, Aug 12 2009
%o A062871 (Python)
%o A062871 from math import isqrt, factorial
%o A062871 def A062871(n): return isqrt(factorial(n)*n**n) # _Chai Wah Wu_, Jun 19 2024
%Y A062871 Cf. A061711, A062872.
%K A062871 easy,nonn
%O A062871 0,3
%A A062871 _Olivier Gérard_, Jun 26 2001