%I
%S 1,3,11,61,853,20088,850404,72224019,11207386103,3245575984755,
%T 1784744625714267,1830394475306895557,3517200566091635085954,
%U 12698075318404649075573041,85871949097296276009847589332
%N Number of nXn 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 neighboring 1s.
%C Diagonal of A296327.
%e Some solutions for n=5
%e ..0..0..0..1..1. .0..0..0..0..0. .0..1..1..0..0. .0..0..0..1..1
%e ..0..0..1..0..1. .0..0..0..0..0. .1..0..1..0..0. .0..0..1..0..1
%e ..0..0..1..0..1. .0..1..1..0..0. .1..1..0..1..1. .0..0..1..1..0
%e ..0..1..0..0..1. .0..1..0..1..0. .0..0..0..1..0. .0..0..0..0..0
%e ..0..1..1..1..0. .0..0..1..1..0. .0..0..0..0..0. .0..0..0..0..0
%Y Cf. A296327.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 10 2017
