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A265191 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.

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%I A265191 #3 Dec 04 2015 07:07:08
%S A265191 0,1,42,20592,20957398,38833756515,117650546564305,543403955513408885
%N A265191 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.
%C A265191 Column 4 of A265192.
%e A265191 Some solutions for n=4
%e A265191 ..0..1..2..1....0..1..0..2....0..1..2..1....0..1..0..1....0..1..2..3
%e A265191 ..3..1..0..3....3..1..0..3....2..0..3..2....2..1..0..2....0..3..1..2
%e A265191 ..2..3..0..2....2..3..1..3....3..0..3..1....3..2..3..2....1..3..0..3
%e A265191 ..0..3..1..2....2..0..1..2....1..0..3..2....3..0..1..3....2..1..2..0
%Y A265191 Cf. A265192.
%K A265191 nonn
%O A265191 1,3
%A A265191 _R. H. Hardin_, Dec 04 2015

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