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%I #6 Dec 18 2015 18:17:37
%S 1,24,29172,504690017,229188213745576
%N Number of n X n array permutations with each element moved no more than a city block distance of two
%C Diagonal of A188958
%e Some solutions for 3X3
%e ..3..0..4....3..0..2....4..7..8....0..2..1....0..1..8....4..0..8....2..7..0
%e ..1..2..7....1..8..4....0..1..3....7..3..8....7..2..5....7..2..3....3..1..4
%e ..6..8..5....6..7..5....6..5..2....6..5..4....3..4..6....6..1..5....6..5..8
%K nonn
%O 1,2
%A _R. H. Hardin_ Apr 14 2011