Number of nX6 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
A278776
Number of nX6 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
Terms
- a(0) =21a(1) =1750a(2) =48501a(3) =955347a(4) =16205001a(5) =251740932a(6) =3634987413a(7) =48847405083a(8) =611199661843
External references
- oeis: A278776