Triangle read by rows, e.g.f. exp(x*(z-3/2))*(exp(3*x/2)+2*cos(sqrt(3)*x/2))/3.

Terms

a(0) =1a(1) =-1a(2) =1a(3) =1a(4) =-2a(5) =1a(6) =0a(7) =3a(8) =-3a(9) =1a(10) =-3a(11) =0a(12) =6a(13) =-4a(14) =1a(15) =9a(16) =-15a(17) =0a(18) =10a(19) =-5a(20) =1a(21) =-18a(22) =54a(23) =-45a(24) =0a(25) =15a(26) =-6a(27) =1a(28) =27a(29) =-126