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

Terms

a(0) =0a(1) =1a(2) =-2a(3) =4a(4) =-24a(5) =16a(6) =-224a(7) =64a(8) =-1920a(9) =256a(10) =-15872a(11) =1024a(12) =-129024a(13) =4096a(14) =-1040384a(15) =16384a(16) =-8355840a(17) =65536a(18) =-66977792a(19) =262144a(20) =-536346624a(21) =1048576a(22) =-4292870144a(23) =4194304a(24) =-34351349760a(25) =16777216a(26) =-274844352512a(27) =67108864a(29) =268435456a(31) =1073741824