Expansion of ((1-x)*(3*x^2-3*x+1))/(1-2*x)^3.

Terms

a(0) =1a(1) =2a(2) =6a(3) =17a(4) =46a(5) =120a(6) =304a(7) =752a(8) =1824a(9) =4352a(10) =10240a(11) =23808a(12) =54784a(13) =124928a(14) =282624a(15) =634880a(16) =1417216a(17) =3145728a(18) =6946816a(19) =15269888a(20) =33423360a(21) =72876032a(22) =158334976a(23) =342884352a(24) =740294656a(25) =1593835520a(26) =3422552064