The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #6 Apr 26 2020 21:01:48
%S 1,1,2,5,11,32,148,960,6802,58510,718772,11693848,239151220,
%T 6062327040,203215388485
%N Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 3 or 6 neighboring 1's.
%C Diagonal of A296554.
%e Some solutions for n=7
%e ..0..0..0..0..1..1..0. .0..0..0..0..0..0..0. .0..0..1..1..0..0..0
%e ..0..0..0..1..1..1..0. .0..0..0..0..0..1..1. .0..1..1..1..0..1..1
%e ..0..0..0..1..1..0..0. .0..0..0..0..1..1..1. .0..1..1..0..1..1..1
%e ..0..0..0..0..0..1..1. .0..0..0..0..1..1..0. .0..0..0..0..1..1..0
%e ..0..1..1..0..1..1..1. .0..0..0..0..0..0..0. .0..1..1..0..0..0..0
%e ..1..1..1..0..1..1..0. .0..0..0..0..0..0..0. .1..1..1..0..0..0..0
%e ..1..1..0..0..0..0..0. .0..0..0..0..0..0..0. .1..1..0..0..0..0..0
%Y Cf. A296554.
%K nonn
%O 1,3
%A _R. H. Hardin_, Dec 15 2017