%I #2 May 16 2003 03:00:00
%S 120,672,523776,459818240,1476304896,31001180160
%N Erroneous version of A005820.
%D David Wells, "The Penguin Book of Curious and Interesting Numbers," Penguin Books, London, 1986, pages 135, 159 and 185.
%K dead
%O 1,1
