The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #4 Nov 17 2013 20:17:19
%S 3,87,6624,2265691,3154769585,16761785898550,346245388962998639,
%T 27933597031900237580649,8787110268003730673863070121,
%U 10774541106851322777417902818902431
%N Number of (n+1)X(n+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero
%C Diagonal of A232076
%e Some solutions for n=3
%e ..0..0..0..0....0..1..1..1....0..0..0..1....0..0..1..1....0..0..0..0
%e ..1..1..0..1....1..0..1..1....0..1..1..0....1..1..0..1....0..0..0..0
%e ..0..0..1..0....0..0..0..0....1..0..1..1....1..1..0..0....1..0..0..0
%e ..0..0..1..1....1..1..1..1....0..1..1..1....0..0..1..0....1..1..1..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 17 2013