The set of consecutive integers are:
If the function is finite, then there are two values
and 
, being 
, in which this function is valid, then:
being
the set of integers in the interval defined by 
If the function is infinite, the function is valid in <span>the set of all integers </span>then:
And -∞
+∞
If the function is finite, then there are two values
being
If the function is infinite, the function is valid in <span>the set of all integers </span>then:
And -∞