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%I #11 Aug 28 2024 09:25:59
%S 0,9,192,251720,1339732352,108943637068673,76260881288534294528,
%T 594579828469677562655346609,46342255378179654331792920815382272,
%U 37825739518339601867409254032413815052514057
%N Number of n X n array permutations with each element making a single king move.
%e Some solutions for 3 X 3:
%e ..4..0..5....4..0..1....1..2..4....3..0..5....1..4..5....4..2..1....3..0..1
%e ..1..8..2....6..2..8....0..3..8....1..2..8....0..6..2....0..6..8....6..8..2
%e ..3..6..7....3..5..7....7..6..5....4..6..7....3..8..7....3..5..7....4..5..7
%Y Diagonal of A189186.
%K nonn,more
%O 1,2
%A _R. H. Hardin_, Apr 18 2011
%E a(9)-a(10) from _Pontus von Brömssen_, Aug 28 2024