%I #3 Dec 17 2015 09:46:18
%S 1,6,3136,3965392,21193260208,187225073253120,4173639524545757568,
%T 132528239245373078204160
%N Number of nX4 arrays of permutations of 4 copies of 0..n1 with no element plus any antidiagonal neighbor equal to n1.
%C Column 4 of A265870.
%e Some solutions for n=3
%e ..1..2..0..0....0..2..2..0....1..1..0..1....1..2..0..1....1..1..2..0
%e ..1..1..0..2....1..1..0..2....0..0..2..2....2..1..0..0....2..2..0..0
%e ..0..1..2..2....2..1..1..0....1..2..2..0....2..0..1..2....2..0..1..1
%Y Cf. A265870.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 17 2015
