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A265869 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element plus any antidiagonal neighbor equal to n-1.

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%I A265869 #3 Dec 17 2015 09:46:18
%S A265869 1,6,3136,3965392,21193260208,187225073253120,4173639524545757568,
%T A265869 132528239245373078204160
%N A265869 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element plus any antidiagonal neighbor equal to n-1.
%C A265869 Column 4 of A265870.
%e A265869 Some solutions for n=3
%e A265869 ..1..2..0..0....0..2..2..0....1..1..0..1....1..2..0..1....1..1..2..0
%e A265869 ..1..1..0..2....1..1..0..2....0..0..2..2....2..1..0..0....2..2..0..0
%e A265869 ..0..1..2..2....2..1..1..0....1..2..2..0....2..0..1..2....2..0..1..1
%Y A265869 Cf. A265870.
%K A265869 nonn
%O A265869 1,2
%A A265869 _R. H. Hardin_, Dec 17 2015

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