Number of n X 7 0..2 arrays with row sums 7 and column sums n.

A172636

Number of n X 7 0..2 arrays with row sums 7 and column sums n.

Terms

    a(0) =1a(1) =393a(2) =35617a(3) =7343449a(4) =1509893001a(5) =360255871641

External references