%I #5 Mar 31 2012 12:37:03
%S 207,3167,53311,4256141,282748327,94493071327,24583374827519,
%T 34898804015036761,36258417235170928699
%N Number of (n+1)X(n+1) 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero
%C Diagonal of A204876
%e Some solutions for n=4
%e ..3..3..3..0..3....3..1..1..1..2....1..3..0..3..2....0..1..1..3..1
%e ..2..0..2..2..2....2..0..2..0..2....0..3..1..0..1....2..2..0..2..0
%e ..0..3..2..1..2....0..1..2..1..0....1..0..1..3..2....0..1..1..1..1
%e ..2..3..0..3..0....2..0..2..0..2....2..3..1..0..1....2..2..0..2..0
%e ..2..0..2..1..2....3..1..0..1..2....1..0..1..3..0....0..1..1..3..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 20 2012