A202653 - OEIS

%I #14 Jul 11 2021 12:50:01

%S 10016,14394092,1960824272,82673548892,1704690798544,21663154469016,

%T 194018658663536

%N Number of 4 X 4 0..n arrays with no row or column sum equal to the previous one.

%e Some solutions for n=1:

%e   1 1 1 1     1 1 1 1     1 0 0 0     0 1 0 0     0 0 1 0

%e   1 0 1 1     1 0 0 0     0 0 0 0     0 0 0 0     1 0 0 1

%e   1 0 0 1     1 0 1 0     1 1 1 1     1 1 0 0     0 0 0 0

%e   0 0 0 1     1 1 1 1     1 1 0 1     0 0 1 0     1 0 0 1

%Y Row 4 of A202651.

%K nonn,more

%O 1,1

%A _R. H. Hardin_, Dec 22 2011