A162044 - OEIS

A162044

Number of n X n binary arrays with rows and columns, considered as binary numbers, in nondecreasing order, and no more than 2 ones in any row or column

%I #4 Dec 18 2015 18:17:21

%S 2,7,24,98,461,2458,14613,95461,677729,5184135,42428781,369422957,

%T 3405529609,33103337716,338110552799

%N Number of n X n binary arrays with rows and columns, considered as binary numbers, in nondecreasing order, and no more than 2 ones in any row or column

%K nonn

%O 1,1

%A _R. H. Hardin_ Jun 25 2009