Expansion of (1-8*x)/(1-4*x+16*x^2).

Terms

a(0) =1a(1) =-4a(2) =-32a(3) =-64a(4) =256a(5) =2048a(6) =4096a(7) =-16384a(8) =-131072a(9) =-262144a(10) =1048576a(11) =8388608a(12) =16777216a(13) =-67108864a(14) =-536870912a(15) =-1073741824a(16) =4294967296a(17) =34359738368a(18) =68719476736a(19) =-274877906944