login
Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 5 and columns nondecreasing modulo 7.
0

%I #3 Nov 26 2015 07:23:15

%S 1,2,2,15,68,401,2179,23229,213332,2642772,38611992,723385584,

%T 16909827584,343510569552,9601049357952,305917702264416

%N Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 5 and columns nondecreasing modulo 7.

%C Row 2 of A264837.

%e Some solutions for n=4

%e ..1..7..2..3....0..5..7..2....0..1..7..2....5..0..7..2....5..0..1..2

%e ..5..0..6..4....1..6..3..4....5..6..3..4....6..1..3..4....6..7..3..4

%Y Cf. A264837.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 26 2015