E.g.f. satisfies: A(sinh(x)) = x*cosh(A(x)).

Terms

a(0) =1a(1) =0a(2) =2a(3) =0a(4) =24a(5) =0a(6) =552a(7) =0a(8) =15936a(9) =0a(10) =427008a(11) =0a(12) =35567232a(13) =0a(14) =7352654592a(15) =0a(17) =0a(19) =0a(21) =0a(23) =0a(25) =0a(27) =0