Alain,
Yes that is it. Remember to array enter it.
--
HTH
RP
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"mcs51mc" wrote in
message ...
Hi Bob,
I tried out your formula but it didn't work well 
Is this what your formula should do?
1) list with blanks in cells A1:A20
2) copy 20 times your formula in, let say, C1:C20 so that this range
contains no blanks (except at the end af course)
Thanks for any reaction
Alain
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mcs51mc
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