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%I #8 Nov 22 2013 09:57:28
%S 34,551,10409,231454,5142441,113293694,2499669158,55147236337,
%T 1216656297612,26841719357568,592179351445235,13064599837184618,
%U 288229857559634498,6358897503996161509,140289343114550595132
%N Number of (4+1)X(n+1) 0..1 arrays with every element equal to some horizontal or antidiagonal neighbor, with top left element zero
%C Row 4 of A232316
%H R. H. Hardin, <a href="/A232320/b232320.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical recurrence of order 78 (see link above)
%e Some.solutions.for.n=3
%e ..0..0..0..0....0..0..1..0....0..0..0..0....0..0..1..1....0..0..0..1
%e ..0..1..0..0....0..1..0..0....1..1..1..1....0..0..1..1....0..0..1..0
%e ..1..0..0..0....1..0..0..1....1..1..1..0....0..1..1..0....0..1..0..0
%e ..1..1..1..1....0..1..1..0....0..0..0..1....1..0..0..1....1..1..0..1
%e ..1..1..1..1....1..0..0..0....1..1..1..1....0..0..1..1....1..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 22 2013
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