An IEnumerable<Int32> in C# or IEnumerable(Of Int32) in vbprvb that contains a range of sequential integral numbers.
This method is implemented by using deferred execution. The immediate return value is an object that stores all the information that is required to perform the action. The query represented by this method is not executed until the object is enumerated either by calling its GetEnumerator method directly or by using foreach in csprcs or For Each in vbprvb.