%I #7 Jan 22 2022 15:13:30
%S 9,187,8088,475606,34126530,2913831633,286927411662,31264307869299
%N Number of 5 X n arrays containing n copies of 0..5-1 with no element 1 greater than its north, west, northwest or northeast neighbor modulo 5 and the upper left element equal to 0.
%C Row 5 of A266493.
%e Some solutions for n=3
%e ..0..4..2....0..3..3....0..3..1....0..3..1....0..4..4....0..0..0....0..0..2
%e ..2..4..2....0..2..2....3..0..0....3..0..3....2..4..2....2..2..2....0..4..2
%e ..4..1..1....2..4..4....2..2..4....2..0..2....1..1..1....4..4..1....4..4..1
%e ..3..1..0....1..1..1....2..1..4....4..4..2....0..3..0....4..1..3....3..3..1
%e ..0..3..3....4..3..0....4..1..3....4..1..1....3..3..2....3..1..3....2..1..3
%Y Cf. A266493.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 30 2015
|