a(n) = [x^n] -3/(2*x - 1)^5.

Terms

a(0) =3a(1) =30a(2) =180a(3) =840a(4) =3360a(5) =12096a(6) =40320a(7) =126720a(8) =380160a(9) =1098240a(10) =3075072a(11) =8386560a(12) =22364160a(13) =58490880a(14) =150405120a(15) =381026304a(16) =952565760a(17) =2353397760a(18) =5752750080a(19) =13927710720a(20) =33426505728a(21) =79586918400a(22) =188114534400a(23) =441660211200