Expansion of e.g.f. sinh(x)/(1-x)^2.

Terms

a(0) =0a(1) =1a(2) =4a(3) =19a(4) =104a(5) =661a(6) =4812a(7) =39607a(8) =364240a(9) =3704617a(10) =41310740a(11) =501328411a(12) =6578864184a(13) =92843236669