Expansion of e.g.f. exp(x) * log(cosh(x)).

Terms

a(0) =0a(1) =1a(2) =3a(3) =4a(4) =0a(5) =1a(6) =63a(7) =64a(8) =-1320a(9) =-1319a(10) =49203a(11) =49204a(12) =-2653560a(13) =-2653559a(14) =196707423a(15) =196707424a(16) =-19194804720a(17) =-19194804719