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%I #6 Mar 31 2012 12:37:25
%S 0,1,1,3,3,16,21,71,114,305,581,1437,2980,6856,14671,32681,70376,
%T 156129,340985,753249,1642055,3601624,7879835,17280310,37865836,
%U 83031844,181895623,398628603,873357406,1913797135,4194416039,9193647288
%N Number of nX1 1..5 arrays with every element value z a city block distance of exactly z from another element value z
%C Column 1 of A209023
%H R. H. Hardin, <a href="/A209020/b209020.txt">Table of n, a(n) for n = 1..210</a>
%e All solutions for n=6
%e ..2....3....3....5....2....4....1....3....4....2....4....5....2....1....1....5
%e ..3....4....3....3....2....4....1....1....1....2....2....1....4....1....1....2
%e ..2....2....3....1....2....1....2....1....1....2....3....1....2....3....1....2
%e ..2....3....3....1....2....1....2....3....2....2....2....1....1....1....1....2
%e ..3....2....3....3....2....4....2....1....4....1....4....1....1....1....1....2
%e ..2....4....3....5....2....4....2....1....2....1....3....5....4....3....1....5
%K nonn
%O 1,4
%A _R. H. Hardin_ Mar 04 2012
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