Number of (2+1)X(n+1) 0..3 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.
A251039
Number of (2+1)X(n+1) 0..3 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) =636a(1) =6089a(2) =45560a(3) =308423a(4) =1907070a(5) =11102613a(6) =61631550a(7) =329986925a(8) =1716594193a(9) =8725394623a(10) =43515415826a(11) =213616088882
External references
- oeis: A251039