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%I #4 Mar 31 2012 12:36:38
%S 1,4,4,6,8,8,8,16,4,10,12,36,20,48,8,20,28,70,28,154,8,32,40,174,16,
%T 100,4,38,44,118
%N Number of 0..3 arrays x(0..n+1) of n+2 elements with zero n-1st differences
%C Column 3 of A200272
%e All solutions for n=6
%e ..1....2....2....1....1....3....2....0
%e ..0....3....1....1....2....3....2....0
%e ..1....2....2....1....1....3....2....0
%e ..2....1....3....1....0....3....2....0
%e ..2....1....3....1....0....3....2....0
%e ..1....2....2....1....1....3....2....0
%e ..0....3....1....1....2....3....2....0
%e ..1....2....2....1....1....3....2....0
%K nonn
%O 1,2
%A _R. H. Hardin_ Nov 15 2011
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