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%I #12 Apr 22 2015 12:06:26
%S -1,-1,-1,713,620448401733239439359975
%N a(n) = (n!)! - n! - 1.
%C Term a(5) has 199 decimal digits. - _Michael De Vlieger_, Mar 31 2015
%e a(3) = (3!)! - 3! - 1 = 720 - 6 - 1 = 713.
%t Table[(n!)! - n! - 1, {n, 0, 5}] (* _Michael De Vlieger_, Mar 31 2015 *)
%K sign
%O 0,4
%A _Assoul Abdelkarim_, Mar 31 2015
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