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%I #6 Sep 04 2022 15:13:02
%S 55,4131,1301955,1751284191,10042099602523,245660147951906863,
%T 25646762400407469919163,11428578484306710530465058551
%N Number of (n+1) X (n+1) 0..2 arrays with no 2 X 2 subblock having a diagonal absolute difference less than its antidiagonal absolute difference.
%C Diagonal of A250841.
%e Some solutions for n=2
%e ..2..0..2....0..2..1....0..0..2....1..0..2....2..0..1....1..1..0....1..1..2
%e ..1..0..2....2..0..0....2..2..0....1..2..2....2..0..1....2..0..1....2..2..2
%e ..0..2..2....0..1..1....2..0..1....2..1..0....1..1..1....1..0..2....2..2..0
%Y Cf. A250841.
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 27 2014