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%I #3 Nov 18 2014 05:49:51
%S 24,161,652,1773,3916,7969,14452,24293,38720,59201,86768,123737,
%T 170864,231061,307156,400573,512768,650369,812560,1003945,1228880,
%U 1491229,1791156,2138429,2532856,2981513,3489820,4060069,4693008
%N Number of length 4+2 0..n arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero
%C Row 4 of A250320
%e Some solutions for n=6
%e ..2....2....2....1....1....4....1....2....4....2....0....3....3....1....2....2
%e ..0....3....2....3....4....4....2....0....3....5....1....0....4....4....0....4
%e ..1....4....6....4....4....1....2....3....4....6....1....1....4....3....0....5
%e ..3....0....6....4....5....5....0....1....4....4....4....6....5....1....3....3
%e ..2....1....4....3....3....0....0....2....2....3....4....6....1....3....3....2
%e ..2....2....0....1....0....6....1....0....3....0....5....1....2....4....1....4
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 18 2014
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