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nigel T | 07:06 Mon 29th Dec 2008 | Crosswords
4 Answers
figures in number sequence which provide validation
?H?C? DIGITS ???
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Check digits
Yes, check digits... but why are we getting crosswords in the Jobs section today?
It's because he "had a job" getting the answer...
Perhaps Nigel thinks he might get a better answer in the 'Education' category. :-)

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mail on sunday 15 across

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