Number of nX7 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
A278777
Number of nX7 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
Terms
- a(0) =56a(1) =5209a(2) =189595a(3) =5355983a(4) =141166787a(5) =3634987413a(6) =90752836672
External references
- oeis: A278777