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Number of nX7 0..1 arrays with no 1 equal to more than one of its king-move neighbors, with the exception of exactly two elements.
1

%I #4 Feb 22 2017 11:22:14

%S 13,544,34464,1172252,33527252,957808843,25269280218,643705916373,

%T 16010099108460,388020733786517,9247437037805448,217036671914282451,

%U 5029023759579668243,115284880924811399314,2617941571002141930815

%N Number of nX7 0..1 arrays with no 1 equal to more than one of its king-move neighbors, with the exception of exactly two elements.

%C Column 7 of A282838.

%H R. H. Hardin, <a href="/A282837/b282837.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%Y Cf. A282838.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 22 2017