Number of nX2 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.
A278548
Number of nX2 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.
Terms
- a(0) =0a(1) =70a(2) =1531a(3) =25402a(4) =385040a(5) =4880813a(6) =50476458a(7) =435272199a(8) =3222371162a(9) =21002624643a(10) =122940347621a(11) =656384657007
External references
- oeis: A278548