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A202748 Number of 7 X n 0..1 arrays with row sums equal and column sums unequal to adjacent columns.

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%I A202748 #6 Dec 02 2021 17:59:32
%S A202748 2,128,2802,183220,8870150,578826040,37121438930,2639009446600
%N A202748 Number of 7 X n 0..1 arrays with row sums equal and column sums unequal to adjacent columns.
%C A202748 Row 7 of A202742.
%e A202748 Some solutions for n=3
%e A202748 ..1..0..0....0..1..0....0..1..1....0..1..0....0..0..1....0..1..1....1..0..0
%e A202748 ..0..0..1....1..0..0....1..1..0....1..0..0....0..1..0....0..1..1....0..1..0
%e A202748 ..0..1..0....1..0..0....0..1..1....0..1..0....0..1..0....0..1..1....0..0..1
%e A202748 ..1..0..0....1..0..0....1..1..0....0..1..0....0..0..1....1..0..1....1..0..0
%e A202748 ..0..0..1....0..0..1....0..1..1....0..0..1....0..0..1....1..1..0....0..1..0
%e A202748 ..1..0..0....1..0..0....0..1..1....0..0..1....0..0..1....1..1..0....0..0..1
%e A202748 ..0..0..1....0..0..1....0..1..1....0..1..0....1..0..0....1..1..0....0..1..0
%Y A202748 Cf. A202742.
%K A202748 nonn
%O A202748 1,1
%A A202748 _R. H. Hardin_ Dec 23 2011

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