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%I #3 Mar 08 2013 19:12:24
%S 7,389,84521,46407465,30122054696,20029573364121,13364073847082009,
%T 8921070496957305924
%N Number of nX4 0..7 arrays with no element equal to another at a city block distance of exactly two, and new values 0..7 introduced in row major order
%C Column 4 of A222894
%e Some solutions for n=3
%e ..0..1..2..3....0..1..1..2....0..1..1..2....0..1..2..2....0..1..2..3
%e ..3..4..4..5....3..3..4..4....3..4..5..5....3..1..4..3....4..1..5..6
%e ..2..2..1..1....1..5..5..1....5..2..6..7....4..2..0..3....7..6..4..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 08 2013