Number of (7+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

A250819

Number of (7+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.

Terms

    a(0) =41112a(1) =131455a(2) =315561a(3) =641571a(4) =1167796a(5) =1962717a(6) =3104985a(7) =4683421a(8) =6797016a(9) =9554931a(10) =13076497a(11) =17491215a(12) =22938756a(13) =29568961a(14) =37541841a(15) =47027577a(16) =58206520a(17) =71269191a(18) =86416281a(19) =103858651a(20) =123817332a(21) =146523525a(22) =172218601a(23) =201154101

External references