Number of nX6 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.
A278894
Number of nX6 0..3 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.
Terms
- a(0) =728a(1) =7709668a(2) =27351484380
External references
- oeis: A278894