Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.
A278651
Number of nX3 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.
Terms
- a(0) =0a(1) =24a(2) =3626a(3) =210616a(4) =6920404a(5) =159247403a(6) =2864009499a(7) =42845787540a(8) =554117433244
External references
- oeis: A278651