|
%I #4 Mar 07 2013 21:29:57
%S 7,370,30528,2903520,276768768,26393020608,2516653274112,
%T 239976498026352,22882892571893280,2181996323092650432,
%U 208063958702105336832,19839913341854050041888,1891832423610196628408928
%N Number of nX4 0..5 arrays with no element equal to another at a city block distance of exactly two, and new values 0..5 introduced in row major order
%C Column 4 of A222871
%H R. H. Hardin, <a href="/A222870/b222870.txt">Table of n, a(n) for n = 1..23</a>
%e Some solutions for n=3
%e ..0..0..1..2....0..1..2..3....0..1..2..0....0..0..1..2....0..0..1..1
%e ..2..3..3..4....4..4..2..5....0..3..4..1....3..4..5..3....2..3..4..5
%e ..4..5..0..4....5..3..0..4....2..5..4..2....3..1..2..4....1..3..4..0
%K nonn
%O 1,1
%A _R. H. Hardin_ Mar 07 2013
| 