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A188417 Number of (2*n)Xn binary arrays with rows in nonincreasing order, 2 ones in every column and no more than 3 ones in any row 0

%I

%S 1,3,16,124,1308,17443,282349,5396178,119324602,3005520274,

%T 85152637884,2685936442822,93514176139534

%N Number of (2*n)Xn binary arrays with rows in nonincreasing order, 2 ones in every column and no more than 3 ones in any row

%C Row 2 of A188416

%e All solutions for 4X2

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Mar 30 2011

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Last modified August 14 09:27 EDT 2022. Contains 356110 sequences. (Running on oeis4.)