Hi!

Here's one way.....

Assume you have in A1:A9

1
2
3
4
5
7
8
9
10

6 is the missing value.

Array entered using the key combo of CTRL,SHIFT,ENTER:

=INDEX(ROW(INDIRECT(A1&":"&A9)),MATCH(0,COUNTIF(A1 :A9,ROW(INDIRECT(A1&":"&A9))),0))

Biff

"Nash" wrote in message
...
Looking for a function or formula that will identify a missing number in a
range of cells containing a sequence of numbers.

Can anyone help?