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A264729 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 6. 0

%I

%S 1,2,4,22,154,931,14160,195952,2808960,58924800,1585406976,

%T 38032879616,1491624640512,52205681184768,2118556421369856

%N Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 6.

%C Row 2 of A264728.

%e Some solutions for n=6

%e ..0..4..8..6..2.10....8..0..6..2.10..7....0..4..8..1..9..5....0..6..2..7.11..3

%e ..1..5..9..7..3.11....4..9..1..5.11..3....6.10..2..7..3.11....4..8..9..1..5.10

%Y Cf. A264728.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 22 2015

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Last modified April 3 17:03 EDT 2020. Contains 333197 sequences. (Running on oeis4.)