Expansion of (1-4x+24x^2)/((1-4x)(1+4x)).

Terms

a(0) =1a(1) =-4a(2) =40a(3) =-64a(4) =640a(5) =-1024a(6) =10240a(7) =-16384a(8) =163840a(9) =-262144a(10) =2621440a(11) =-4194304a(12) =41943040a(13) =-67108864a(14) =671088640a(15) =-1073741824a(16) =10737418240a(17) =-17179869184a(18) =171798691840a(19) =-274877906944