Number of nX4 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
A278630
Number of nX4 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly two mistakes.
Terms
- a(0) =15a(1) =3354a(2) =234484a(3) =10776210a(4) =387551595a(5) =11719632199a(6) =309971214338
External references
- oeis: A278630