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 A233448 #6 Dec 21 2013 03:57:08 %S A233448 0,0,0,0,0,0,0,0,0,0,25401600,174182400,1437004800,46942156800, %T A233448 301771008000,0,188305108992000,5272543051776000,30128817438720000, %U A233448 964122158039040000,24517325190758400000,118315866081853440000,16505063318418554880000,283958078596448256000000 %N A233448 Compositorial(n) mod n!, that is, A036691(n) mod A000142(n). %C A233448 The sequence of numbers k such that a(k) > a(k+1) begins: 15, 81, 135, 337, 57517, ... %o A233448 (PARI) a(n)=my(c,p,N);N=n;c=4;p=1;while(n>0,if(!isprime(c),p=p*c;n=n-1);c=c+1);p%N! \\ _Ralf Stephan_, Dec 21 2013 %Y A233448 Cf. A000142, A036691. %K A233448 nonn %O A233448 1,11 %A A233448 _Alex Ratushnyak_, Dec 10 2013