Triangle of denominators of the cube of a certain lower triangular matrix.

Terms

a(0) =1a(1) =8a(2) =8a(3) =108a(4) =108a(5) =27a(6) =576a(7) =576a(8) =576a(9) =64a(10) =18000a(11) =18000a(12) =18000a(13) =2000a(14) =125a(15) =21600a(16) =21600a(17) =21600a(18) =21600a(19) =5400a(20) =216a(21) =1234800a(22) =1234800a(23) =1234800a(24) =1234800a(25) =308700a(26) =12348a(27) =343a(28) =5644800a(29) =5644800