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%I #13 Dec 15 2025 16:53:25
%S 1,2,16,511,63935,29898526,49116829858,266752545057881
%N Number of n X n binary matrices that contain no 3 X 3 zero submatrix.
%Y Cf. A001198, A175563 (no 2x2 zero submatrix), A350304.
%K nonn,more
%O 0,2
%A _Eric W. Weisstein_, Dec 14 2025
%E a(6)-a(7) from _Max Alekseyev_, Dec 15 2025