Number of nX5 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
A278775
Number of nX5 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
Terms
- a(0) =6a(1) =503a(2) =10784a(3) =150085a(4) =1673658a(5) =16205001a(6) =141166787a(7) =1126917480a(8) =8340736743a(9) =57745890265a(10) =376707516550
External references
- oeis: A278775