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.

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.

Terms

    a(0) =2a(1) =7a(2) =24a(3) =98a(4) =461a(5) =2458a(6) =14613a(7) =95461a(8) =677729a(9) =5184135a(10) =42428781a(11) =369422957a(12) =3405529609a(13) =33103337716a(14) =338110552799

External references