GCD of n! and the reverse of n!.

Terms

a(0) =1a(1) =2a(2) =6a(3) =6a(4) =3a(5) =9a(6) =45a(7) =1152a(8) =189a(9) =189a(10) =99a(11) =594a(12) =594a(13) =198a(14) =99a(15) =198a(16) =99a(17) =594a(18) =99a(19) =378378a(20) =45045a(21) =99a(22) =396a(23) =30294a(24) =2279277a(25) =14256a(26) =3267a(27) =1089a(28) =6336a(29) =9702