Expansion of (1-3*x+6*x^2-3*x^3)/((1-x)^2*(1-2*x)).

Terms

a(0) =1a(1) =1a(2) =5a(3) =14a(4) =33a(5) =72a(6) =151a(7) =310a(8) =629a(9) =1268a(10) =2547a(11) =5106a(12) =10225a(13) =20464a(14) =40943a(15) =81902a(16) =163821a(17) =327660a(18) =655339a(19) =1310698a(20) =2621417a(21) =5242856a(22) =10485735a(23) =20971494a(24) =41943013a(25) =83886052a(26) =167772131a(27) =335544290a(28) =671088609a(29) =1342177248