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A264795 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 7. 0

%I

%S 1,3,15,130,1944,40188,1149120,49148112,2541311040,156667403520,

%T 11530576378368

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

%C Row 2 of A264794.

%e Some solutions for n=6

%e ..8..2..0..4..9..7...10..0..2..8..4..1....2..4..0..1..3..7....8..0..1..7..3..9

%e ..6.10..3..5.11..1....6..7..9..3.11..5...10..6..8..9..5.11....4..6.10..2..5.11

%Y Cf. A264794.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 25 2015

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Last modified June 29 21:38 EDT 2022. Contains 354913 sequences. (Running on oeis4.)