Number of nX7 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.

A266546

Number of nX7 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.

Terms

    a(0) =2a(1) =5a(2) =13a(3) =36a(4) =110a(5) =366a(6) =1688a(7) =5312a(8) =24921a(9) =101495a(10) =417118a(11) =1673507a(12) =6081357a(13) =22843019a(14) =72935735a(15) =238112928a(16) =734665224a(17) =2185350505

External references