Number of nX5 binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.

A266932

Number of nX5 binary arrays with rows lexicographically nondecreasing and columns lexicographically nondecreasing and row sums nondecreasing and column sums nonincreasing.

Terms

    a(0) =2a(1) =5a(2) =14a(3) =52a(4) =210a(5) =871a(6) =3566a(7) =13899a(8) =50841a(9) =173470a(10) =553021a(11) =1652621a(12) =4652572a(13) =12400392a(14) =31443461a(15) =76188169a(16) =177120011a(17) =396481264a(18) =857322183a(19) =1795814448a(20) =3653191802a(21) =7233526075a(22) =13969016501a(23) =26357103244a(24) =48668165412a(25) =88071764221

External references