%I #5 Mar 30 2012 18:38:51
%S 24,992717442773183102976,
%T 40430184518317723114801581310112416990289059355748360594946908815790677863132786902106242711047388589217057430911294714969909793737790976356051669072468180437703895774095957648134608257024
%N a(n)=(5^n)!/5^(floor(5^n/4)).
%C 5^(floor(5^n/4)) is the highest power of 5 dividing (5^n)!
%K nonn,bref
%O 1,1
%A _Benoit Cloitre_, Feb 04 2002