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) =0a(22) =-54a(23) =-45a(24) =0a(25) =15a(26) =6a(27) =1a(28) =99a(29) =0