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%I #6 Apr 20 2020 19:47:20
%S 2,16,216,5081,122770,4245574,132388406,5520112546,217360101006,
%T 10635681264937
%N Number of n X n 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
%C Diagonal of A267788.
%e Some solutions for n=4
%e ..1..0..0..1....0..1..1..0....0..0..0..0....1..1..1..1....0..1..0..0
%e ..0..0..0..0....0..1..0..0....0..1..1..0....0..0..0..0....1..0..1..1
%e ..1..1..1..1....1..0..0..1....1..1..0..1....1..1..0..1....0..1..0..0
%e ..1..1..0..1....1..1..1..1....1..0..1..1....0..1..1..0....1..0..0..1
%Y Cf. A267788.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 20 2016