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Number of n X 7 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
1

%I #6 Apr 05 2020 22:54:07

%S 33,1481,120058,13941789,1495300322,177476886878,20513380740103,

%T 2467754689139967,294625135884008616,35796621202795670294,

%U 4346160057088704088179,532218134572276626959066

%N Number of n X 7 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

%C Column 7 of A284334.

%H R. H. Hardin, <a href="/A284333/b284333.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A284334.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 25 2017