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A188421 Number of (6*n)Xn binary arrays with rows in nonincreasing order, 6 ones in every column and no more than 3 ones in any row 0

%I #4 Mar 31 2012 12:36:12

%S 1,7,256,36659,15083334,14100262412,25784105550034

%N Number of (6*n)Xn binary arrays with rows in nonincreasing order, 6 ones in every column and no more than 3 ones in any row

%C Row 6 of A188416

%e All solutions for 12X2

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

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

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

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

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

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

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

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

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

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Mar 30 2011

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)