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

Terms

a(0) =1a(1) =-2a(2) =2a(3) =-2a(4) =4a(5) =-8a(6) =12a(7) =-16a(8) =24a(9) =-40a(10) =64a(11) =-96a(12) =144a(13) =-224a(14) =352a(15) =-544a(16) =832a(17) =-1280a(18) =1984a(19) =-3072a(20) =4736a(21) =-7296a(22) =11264a(23) =-17408a(24) =26880a(25) =-41472a(26) =64000a(27) =-98816a(28) =152576a(29) =-235520