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

Terms

a(0) =1a(1) =-1a(2) =0a(3) =1a(4) =1a(5) =-4a(6) =-1a(7) =11a(8) =2a(9) =-35a(10) =-1a(11) =112a(12) =-9a(13) =-369a(14) =66a(15) =1237a(16) =-327a(17) =-4212a(18) =1433a(19) =14527a(20) =-5926a(21) =-50659a(22) =23749a(23) =178356a(24) =-93427a(25) =-633225a(26) =363342a(27) =2264885a(28) =-1402803a(29) =-8154564