Expansion of exp(tanh(x)*cos(x)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =-4a(4) =-19a(5) =-8a(6) =397a(7) =1752a(8) =-7943a(9) =-117312a(10) =-64551a(11) =7882624a(12) =43466469a(13) =-537535360a(14) =-7570028763a(15) =27307332608