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

Terms

a(0) =1a(1) =8a(2) =35a(3) =110a(4) =280a(5) =616a(6) =1218a(7) =2220a(8) =3795a(9) =6160a(10) =9581a(11) =14378a(12) =20930a(13) =29680a(14) =41140a(15) =55896a(16) =74613a(17) =98040a(18) =127015a(19) =162470a(20) =205436a(21) =257048a(22) =318550a(23) =391300a(24) =476775a(25) =576576a(26) =692433a(27) =826210a(28) =979910a(29) =1155680