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A188810 Number of nX2 array permutations with each element moved but remaining in its original row or its original column 0

%I #5 Mar 31 2012 12:36:14

%S 1,4,20,272,6032,205312,9672448,601903360,47722897664,4692633242624

%N Number of nX2 array permutations with each element moved but remaining in its original row or its original column

%C Column 2 of A188813

%e Some solutions for 3X2

%e ..2..5....4..5....4..3....1..0....4..5....2..5....2..0....4..3....1..0....1..0

%e ..3..1....0..1....0..2....4..5....3..2....4..1....3..1....0..5....3..2....4..2

%e ..0..4....2..3....5..1....2..3....0..1....0..3....5..4....2..1....5..4....5..3

%K nonn

%O 1,2

%A _R. H. Hardin_ Apr 11 2011

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Last modified July 25 14:26 EDT 2024. Contains 374609 sequences. (Running on oeis4.)