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Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element 1 greater than its northeast neighbor modulo n and the upper left element equal to 0.
0

%I #3 Jan 02 2016 08:34:02

%S 1,3,829,1044230,3801147519,32355628895416,552401151665874798,

%T 17030692774688332735790

%N Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element 1 greater than its northeast neighbor modulo n and the upper left element equal to 0.

%C Column 4 of A266655.

%e Some solutions for n=3

%e ..0..2..0..2....0..1..1..0....0..1..2..2....0..0..1..2....0..1..1..2

%e ..1..0..1..2....1..0..2..0....0..1..2..1....0..0..1..2....0..0..2..2

%e ..0..1..2..1....2..2..2..1....0..2..1..0....2..1..1..2....0..1..2..1

%Y Cf. A266655.

%K nonn

%O 1,2

%A _R. H. Hardin_, Jan 02 2016