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%I #8 Sep 07 2022 11:25:53
%S 0,4,48,12592,10252800,64731638400,2239546267804672,
%T 494966160398383884544
%N Number of n X n array permutations with each element moving one space diagonally, horizontally or vertically.
%C Diagonal of A189355.
%e Some solutions for 3 X 3
%e ..1..2..5....4..0..1....1..2..5....4..2..1....3..2..1....3..0..5....1..0..5
%e ..0..8..4....6..3..2....7..0..8....0..5..8....4..0..8....6..1..2....6..8..2
%e ..3..6..7....7..8..5....3..6..4....3..6..7....7..6..5....7..8..4....3..4..7
%Y Cf. A189355.
%K nonn
%O 1,2
%A _R. H. Hardin_, Apr 20 2011
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