Personal Number Skips

Dear All,

In my PA, last number is 158 so when i post new employee from recruitment, a next number should be generate. Acually when i post from rctm. , 160 number is being generated. if i delete it from pu00, then again it takes next number. so please anybody can tell me between recruitment to PA, which tables used to store and from which table it takes pernr ?

thanks in advance.

Jolly Black