0 N (2n-2)! n ! (n + r) !'

Let

F (n + r) = ^(2n-2)! /_{n!.(n + r)!}

*Balakram has proved that F (n) is an integer for an infinity of values of .n. The object of this note is to show that when r is any fixed positive integer, F (n + r) is also an integer for infinitely many values of n.