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

Terms

a(0) =0a(1) =1a(2) =1a(3) =-1a(4) =-1a(5) =5a(6) =5a(7) =-15a(8) =-15a(9) =55a(10) =55a(11) =-197a(12) =-197a(13) =727a(14) =727a(15) =-2705a(16) =-2705a(17) =10165a(18) =10165a(19) =-38455a(20) =-38455a(21) =146301a(22) =146301a(23) =-559131a(24) =-559131a(25) =2145025a(26) =2145025a(27) =-8255575a(28) =-8255575a(29) =31861025