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 A062322 #14 Dec 15 2017 17:35:09
%S A062322 1,24,40320,362880,479001600,20922789888000,6402373705728000,
%T A062322 2432902008176640000,620448401733239439360000,
%U A062322 15511210043330985984000000,10888869450418352160768000000
%N A062322 Factorials of nonsquarefree numbers, or A013929(n)!, (including 1).
%H A062322 Harry J. Smith, <a href="/A062322/b062322.txt">Table of n, a(n) for n = 0..100</a>
%t A062322 Select[Range[0,30],!SquareFreeQ[#]&]! (* _Harvey P. Dale_, Aug 27 2016 *)
%o A062322 (PARI) for(n=0,38, if(issquarefree(n), n+1,print(n!)))
%o A062322 (PARI) { n=-1; for (m=0, 10^9, if (m>0, f*=m, f=1); if (!issquarefree(m), write("b062322.txt", n++, " ", f); if (n==100, break)); ) } \\ _Harry J. Smith_, Aug 04 2009
%Y A062322 Cf. A013929.
%K A062322 easy,nonn
%O A062322 0,2
%A A062322 _Jason Earls_, Jul 05 2001
%E A062322 Better name from _Jon E. Schoenfield_, Aug 09 2015