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Number of n X n 0..2 arrays with row sums equal and no column sum equal to the previous
1

%I #5 Dec 18 2015 18:17:56

%S 3,10,624,173860,421158558,8496020082856

%N Number of n X n 0..2 arrays with row sums equal and no column sum equal to the previous

%C Column 2 of A202714

%e Some solutions for n=3

%e ..0..2..1....1..1..1....0..0..2....0..2..2....0..1..1....2..0..0....1..0..2

%e ..0..2..1....1..2..0....2..0..0....0..2..2....2..0..0....0..2..0....2..1..0

%e ..1..1..1....2..0..1....2..0..0....1..1..2....0..0..2....2..0..0....0..1..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 23 2011