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%I #4 Mar 31 2012 12:37:28
%S 12,1243,236727,43361446,6170585599,815113744488,103803050876877,
%T 13009082234406309,1639685959850389986,207628870678244320910
%N Number of nX4 0..3 arrays with every element value z a city block distance of exactly z from another element value z
%C Column 4 of A209178
%e Some solutions for n=4
%e ..0..3..0....0..2..3....0..0..0....0..3..3....0..0..2....2..0..2....2..2..2
%e ..2..0..2....2..2..0....2..3..1....1..1..3....0..1..1....0..2..2....0..2..3
%e ..1..1..0....2..1..2....2..2..1....3..1..0....2..1..2....2..2..0....3..2..3
%e ..0..3..2....2..1..3....0..2..3....0..0..3....2..2..2....1..1..1....3..2..3
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 05 2012