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%I #5 Mar 31 2012 12:36:39
%S 248,1830,11008,67852,473034,3397130,24220966,171351382,1214558880,
%T 8651325238,61876262346,443696753874,3187550880360,22937925283316,
%U 165329774491030,1193432351805558,8626352984960916,62427556201202018
%N Number of -4..4 arrays x(0..n+2) of n+3 elements with zero sum and no two or three adjacent elements summing to zero
%C Column 4 of A200430
%H R. H. Hardin, <a href="/A200426/b200426.txt">Table of n, a(n) for n = 1..183</a>
%e Some solutions for n=3
%e .-4...-1...-2...-4....1...-4...-2....0....3...-2....2....1....3....3....3....4
%e ..2....3....3...-1...-3....1...-3....4...-2....4....0....1....2....0....4....4
%e ..3....4....1....0....0...-2...-1...-3....0...-3....3....2....0....2....0...-2
%e .-2....0...-3...-1...-1....4....3....0...-4....2...-4....0....2...-1...-2...-4
%e ..3...-3...-2....3....3...-3....0...-1....1...-1....0...-4...-3...-2...-3...-1
%e .-2...-3....3....3....0....4....3....0....2....0...-1....0...-4...-2...-2...-1
%K nonn
%O 1,1
%A _R. H. Hardin_ Nov 17 2011
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