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%I #3 Dec 07 2015 07:09:55
%S 0,0,1,236,363850,860077644,3040856393843,15614173687644042
%N Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal, vertical or antidiagonal neighbors and new values introduced sequentially from 0.
%C Column 4 of A265373.
%e Some solutions for n=4
%e ..0..1..2..0....0..1..2..3....0..1..0..2....0..1..2..1....0..1..2..1
%e ..2..0..1..3....2..3..0..1....3..2..1..3....2..0..3..0....3..0..3..2
%e ..3..2..0..2....0..1..3..0....1..3..0..2....3..2..1..2....1..2..0..1
%e ..1..3..1..3....3..2..1..2....2..1..3..0....1..3..0..3....0..3..2..3
%Y Cf. A265373.
%K nonn
%O 1,4
%A _R. H. Hardin_, Dec 07 2015
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