Triangle read by rows, e.g.f. exp(x*z)*((exp(x/2)+exp(x*3/2))/((exp(3*x/2)+ 2*cos(sqrt(3)*x/2))/3)-1).

A215064

Triangle read by rows, e.g.f. exp(x*z)*((exp(x/2)+exp(x*3/2))/((exp(3*x/2)+ 2*cos(sqrt(3)*x/2))/3)-1).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =-1a(7) =3a(8) =3a(9) =1a(10) =-3a(11) =-4a(12) =6a(13) =4a(14) =1a(15) =-9a(16) =-15a(17) =-10a(18) =10a(19) =5a(20) =1a(21) =19a(22) =-54a(23) =-45a(24) =-20a(25) =15a(26) =6a(27) =1a(28) =99a(29) =133

External references