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A221437 Number of nX7 1..(max n,7) arrays with each row and column having unrepeated values 0

%I

%S 5040,9344160,5411750400,782137036800,20449013760000,61479419904000,

%T 61479419904000

%N Number of nX7 1..(max n,7) arrays with each row and column having unrepeated values

%C Column 7 of A221438

%e Some solutions for n=2

%e ..1..2..3..4..5..6..7....1..3..5..2..6..4..7....1..2..3..4..7..6..5

%e ..2..7..1..3..6..4..5....2..5..6..4..3..7..1....2..4..6..1..5..3..7

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 16 2013

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Last modified January 22 19:42 EST 2022. Contains 350499 sequences. (Running on oeis4.)