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A221435 Number of nX5 1..(max n,5) arrays with each row and column having unrepeated values.

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%I A221435 #5 Jul 23 2025 01:55:31
%S A221435 120,5280,66240,161280,161280,812851200,20449013760000,
%T A221435 921456860096102400,68695056598964266598400
%N A221435 Number of nX5 1..(max n,5) arrays with each row and column having unrepeated values.
%C A221435 Column 5 of A221438
%e A221435 Some solutions for n=3
%e A221435 ..3..5..2..1..4....1..4..2..5..3....1..3..4..2..5....5..4..1..2..3
%e A221435 ..1..3..5..4..2....2..3..4..1..5....2..4..1..5..3....2..1..5..3..4
%e A221435 ..2..1..4..5..3....4..5..3..2..1....3..5..2..1..4....4..3..2..5..1
%K A221435 nonn
%O A221435 1,1
%A A221435 _R. H. Hardin_ Jan 16 2013

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