Diagonal of rational function 1/(1 - (1 + x*y*z) * (x^3 + y^3 + z^3)).

Terms

a(0) =1a(1) =0a(2) =0a(3) =6a(4) =18a(5) =18a(6) =96a(7) =540a(8) =1350a(9) =3480a(10) =16470a(11) =61020a(12) =175860a(13) =627480a(14) =2498580a(15) =8520876a(16) =28563570a(17) =106917300a(18) =393495396a(19) =1369171188a(20) =4914119826a(21) =18191218716a(22) =65741140080a(23) =235643531508a(24) =862450963704