Coefficients of polynomials ( (1 -x +sqrt(x))^(n+1) - (1 -x -sqrt(x))^(n+1) )/(2*sqrt(x)).

Terms

a(0) =1a(1) =2a(2) =-2a(3) =3a(4) =-5a(5) =3a(6) =4a(7) =-8a(8) =8a(9) =-4a(10) =5a(11) =-10a(12) =11a(13) =-10a(14) =5a(15) =6a(16) =-10a(17) =6a(18) =-6a(19) =10a(20) =-6a(21) =7a(22) =-7a(23) =-14a(24) =29a(25) =-14a(26) =-7a(27) =7a(28) =8a(29) =0