Category array & page

Hi there,
Is it possible to combine the above?
I have the following (which works well);

in_category( array( 16,17,18,19,20,21,22,23 ) )

But I’d also like it to appear on this page;

is_page(‘2527’)

I’ve tried using || but this doesn’t seem to do the trick… any help would be very much appreciated ??
Jas

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