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

A250610

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

Terms

    a(0) =1013a(1) =2336a(2) =4353a(3) =7320a(4) =11749a(5) =18664a(6) =30113a(7) =50192a(8) =87093a(9) =157200a(10) =293281a(11) =560872a(12) =1091045a(13) =2145944a(14) =4249857a(15) =8451360a(16) =16847605a(17) =33632896a(18) =67195841a(19) =134313656a(20) =268540773a(21) =536986056a(22) =1073867233a(23) =2147619760a(24) =4295114549a(25) =8590093424

External references