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Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.
1

%I #4 Mar 08 2017 14:15:36

%S 0,1460,402588,44556288,5074155320,536229705204,54620836862500,

%T 5432594465187864,530096184197639160,50983454402298243104,

%U 4847268086112091307116,456542412664292202205844

%N Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element.

%C Column 7 of A283494.

%H R. H. Hardin, <a href="/A283493/b283493.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

%Y Cf. A283494.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 08 2017