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

Terms

a(0) =1a(1) =-2a(2) =8a(3) =-16a(4) =64a(5) =-128a(6) =512a(7) =-1024a(8) =4096a(9) =-8192a(10) =32768a(11) =-65536a(12) =262144a(13) =-524288a(14) =2097152a(15) =-4194304a(16) =16777216a(17) =-33554432a(18) =134217728a(19) =-268435456a(20) =1073741824a(21) =-2147483648a(22) =8589934592a(23) =-17179869184a(24) =68719476736a(25) =-137438953472