Expansion of (7-2*x) / (1-3*x+x^2).

Terms

a(0) =7a(1) =19a(2) =50a(3) =131a(4) =343a(5) =898a(6) =2351a(7) =6155a(8) =16114a(9) =42187a(10) =110447a(11) =289154a(12) =757015a(13) =1981891a(14) =5188658a(15) =13584083a(16) =35563591a(17) =93106690a(18) =243756479a(19) =638162747a(20) =1670731762a(21) =4374032539a(22) =11451365855a(23) =29980065026a(24) =78488829223a(25) =205486422643a(26) =537970438706