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Number of n X 6 0..2 arrays with row sums equal and column sums equal.
0

%I #8 Apr 25 2024 13:26:16

%S 3,183,10833,513903,39612503,8459809773,360255871643,37057831534783,

%T 4131064166006823,431284911997558083,48321459222257750543

%N Number of n X 6 0..2 arrays with row sums equal and column sums equal.

%e Some solutions for n=5:

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

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

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

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

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

%Y Column 6 of A203564.

%K nonn,more

%O 1,1

%A _R. H. Hardin_, Jan 03 2012