%I
%S 0,1308,2688,3604,5712,9118,14375,22700,36144,58168,94524,154800,
%T 254959,421560,698756,1159898,1926760,3201376,5318733,8833940,
%U 14666360,24337820,40366132,66914912,110866187,183590176,303864300,502685950,831204864
%N Number of 7 X n 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
%H R. H. Hardin, <a href="/A281211/b281211.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 4*a(n1)  4*a(n2)  2*a(n3) + 4*a(n4)  a(n6) for n>13.
%F Empirical g.f.: x^2*(1308  2544*x  1916*x^2 + 4664*x^3 + 830*x^4  2793*x^5  12*x^6 + 920*x^7 + 274*x^8 + 40*x^9  18*x^10  10*x^11) / ((1  x)^2*(1  x  x^2)^2).  _Colin Barker_, Feb 18 2019
%e Some solutions for n=4:
%e ..0..1..0..1. .0..0..1..0. .0..0..1..0. .0..1..0..1. .0..1..1..0
%e ..0..0..0..1. .1..0..1..0. .1..0..1..0. .1..0..1..0. .0..0..1..0
%e ..0..1..0..1. .1..1..1..0. .0..1..0..1. .1..0..1..0. .1..0..1..0
%e ..0..1..0..0. .0..0..1..0. .0..1..0..1. .1..0..1..0. .0..1..0..1
%e ..0..1..1..0. .1..0..1..0. .0..0..1..0. .0..1..1..0. .0..1..1..1
%e ..0..0..1..0. .1..0..1..0. .1..0..1..0. .0..0..1..0. .0..1..0..1
%e ..1..0..1..1. .0..1..0..1. .0..1..0..1. .1..0..1..0. .0..1..0..0
%Y Row 7 of A281205.
%K nonn
%O 1,2
%A _R. H. Hardin_, Jan 17 2017
