Number of (n+1) X (5+1) 0..3 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.
A250874
Number of (n+1) X (5+1) 0..3 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) =2306a(1) =11644a(2) =55386a(3) =250964a(4) =1097986a(5) =4685964a(6) =19649066a(7) =81358084a(8) =333810066a(9) =1360557884a(10) =5518553146a(11) =22303914804a(12) =89906240546a(13) =361699655404
External references
- oeis: A250874