(Product_{i=1..4} (x+i)) / (Product_{i=1..4} (x-i)) = Sum_{n>=1} a(n)/A067419(n)*x^n.

A068180

(Product_{i=1..4} (x+i)) / (Product_{i=1..4} (x-i)) = Sum_{n>=1} a(n)/A067419(n)*x^n.

Terms

    a(0) =1a(1) =25a(2) =625a(3) =11095a(4) =164125a(5) =2201575a(6) =28021525a(7) =346791295a(8) =4228592125a(9) =51161968375a(10) =616523997925

External references