%N Infinite array read by antidiagonals: a(m,n) = the smallest positive integer that is >= max(m,n) and is non-coprime to both m and n.
%C The first row of this array is row 2. The first column of this array is column 2.
%Y Cf. A141327, A141328.
%A _Leroy Quet_, Jun 25 2008
%E Extended by _Ray Chandler_, Jun 24 2009