Integer quotient defining A068418 is 3.

Terms

a(0) =1320a(1) =3696a(2) =5520a(3) =13800a(4) =19872a(5) =22560a(6) =23688a(7) =87000a(8) =89964a(9) =366720a(10) =785808a(11) =1235052a(12) =1470720a(13) =8690112a(14) =45986616a(15) =46862592a(16) =78584640a(17) =142588224a(18) =231718968a(19) =235668528a(20) =377425920a(21) =1598249952a(22) =9518204448a(23) =12026499072a(24) =40964894160a(25) =65368504980