Number of nX7 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.
A224390
Number of nX7 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing.
Terms
- a(0) =120a(1) =14400a(2) =881519a(3) =32806574a(4) =882833522a(5) =19879000458a(6) =424124440444
External references
- oeis: A224390