Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.
A278622
Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly one mistake.
Terms
- a(0) =16a(1) =357a(2) =4754a(3) =49503a(4) =439446a(5) =3438414a(6) =24103803a(7) =153073965a(8) =888863183a(9) =4758719096a(10) =23665023516a(11) =110046094356a(12) =481337375925
External references
- oeis: A278622