Number of (4+1)X(n+1) 0..2 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
A250998
Number of (4+1)X(n+1) 0..2 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.
Terms
- a(0) =2323a(1) =18387a(2) =111175a(3) =590305a(4) =2800667a(5) =12340547a(6) =51107941a(7) =202138965a(8) =769534821a(9) =2842199370a(10) =10235285328a(11) =36098675795a(12) =125089438788a(13) =427039424933
External references
- oeis: A250998