Expansion of ((1-x)/(1-2x))^10.

Terms

a(0) =1a(1) =10a(2) =65a(3) =340a(4) =1550a(5) =6412a(6) =24650a(7) =89440a(8) =309605a(9) =1030490a(10) =3317445a(11) =10377180a(12) =31655820a(13) =94451520a(14) =276313200a(15) =794169792a(16) =2246410560a(17) =6262748160a(18) =17230138880a(19) =46831339520a(20) =125870737408a(21) =334826700800a(22) =882159984640