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Number of 5Xn arrays containing n copies of 0..5-1 with no element plus any horizontal or vertical neighbor equal to 5-1.
0

%I #5 Aug 12 2016 06:53:58

%S 48,4912,951040,234168152,66434312368,20573458824776,6752109661033720,

%T 2310220535915090896

%N Number of 5Xn arrays containing n copies of 0..5-1 with no element plus any horizontal or vertical neighbor equal to 5-1.

%C Row 5 of A265663.

%e Some solutions for n=2

%e ..1..0....3..4....4..1....0..2....4..3....1..0....2..1....3..2....1..1....1..2

%e ..2..1....0..3....1..2....3..0....4..2....0..2....1..0....4..4....0..2....4..3

%e ..4..4....1..2....0..3....2..3....1..0....3..3....4..3....2..3....2..4....3..4

%e ..2..3....1..0....0..2....1..4....1..2....2..4....3..4....0..0....0..3....0..1

%e ..0..3....4..2....3..4....4..1....0..3....4..1....0..2....1..1....3..4....2..0

%Y Cf. A265663.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 12 2015