Expansion of e.g.f. exp(x * sqrt(1-x^2)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =-2a(4) =-11a(5) =-44a(6) =-59a(7) =-104a(8) =1513a(9) =-4976a(10) =14761a(11) =-1005344a(12) =-594659a(13) =-120135872a(14) =-8409491a(15) =-19661062784a(16) =461914321a(18) =8555830993a(20) =-595229416379