E.g.f. satisfies: A(x)^A(-x) = exp(2*x) * A(-x)^A(x).

Terms

a(0) =1a(1) =1a(2) =0a(3) =-5a(4) =0a(5) =196a(6) =0a(7) =-21440a(8) =0a(9) =4605736a(10) =0a(11) =-1636894280a(12) =0a(13) =869411900176a(14) =0a(16) =0a(18) =0a(20) =0a(22) =0a(24) =0a(26) =0a(28) =0a(30) =0