To create such a sequence, you could use a field coded as:
{=MOD({PAGE},2)*INT(({PAGE}+1)/2) \# 0;;}



Note: The field brace pairs (ie '{ }') for the above example are created in the document header or footer via Ctrl-F9 (Cmd-F9 on a Mac) - you can't simply type them or copy & paste them from this message. Nor do you use the Insert|Quick Parts|Fields dialogue.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Thanks Paul

That has worked, if I was to label the page 1 for example as 1A and the page beside page 2 as 2A, what expression would you recommend.

Cheers

Anthony