Number of 6Xn 0..1 arrays with row sums nondecreasing and column sums unimodal.

A223630

Number of 6Xn 0..1 arrays with row sums nondecreasing and column sums unimodal.

Terms

    a(0) =7a(1) =247a(2) =7504a(3) =228401a(4) =6555965a(5) =180713080a(6) =4777458798a(7) =122344224851

External references