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%I #6 Apr 20 2020 19:46:12
%S 2,16,102,872,4444,26906,116036,592110,2411426,11438402,45729992,
%T 209204918,830949994,3719941006,14733123252,64989888570
%N Number of n X n 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.
%C Diagonal of A267719.
%e Some solutions for n=5
%e ..1..0..1..1..0....1..0..1..1..0....1..0..1..0..1....0..1..1..0..1
%e ..0..1..0..0..1....0..1..0..0..1....0..1..0..1..0....1..0..0..1..1
%e ..0..0..1..1..0....1..0..1..1..0....1..0..1..0..1....0..1..0..1..0
%e ..1..0..0..1..0....1..0..0..1..1....1..0..1..0..0....1..0..1..0..1
%e ..0..1..0..0..1....0..1..0..0..1....0..1..0..1..0....1..1..0..1..0
%Y Cf. A267719.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 19 2016