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%I #6 Apr 26 2020 20:44:45
%S 2,16,264,15226,2530461,1119189256,1496646288297,5725555721739395,
%T 62058786307229208212,1952915013418224842868823,
%U 176329484983538571638638096503
%N Number of n X n 0..1 arrays with no 1 equal to more than two of its horizontal, diagonal and antidiagonal neighbors.
%C Diagonal of A283691.
%e Some solutions for n=4
%e ..1..0..1..0. .1..0..0..0. .0..0..0..1. .1..1..0..0. .0..0..1..0
%e ..1..0..0..1. .0..1..0..1. .0..1..0..0. .1..1..0..0. .0..1..0..1
%e ..0..0..0..0. .0..0..0..1. .0..0..0..1. .0..0..0..1. .0..1..0..1
%e ..1..0..1..0. .0..0..1..1. .0..0..0..0. .0..0..1..0. .1..0..0..0
%Y Cf. A283691.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 14 2017
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