Number of (n+1)X(3+1) 0..3 arrays with row and column sums nondecreasing, and no adjacent elements equal.
A233030
Number of (n+1)X(3+1) 0..3 arrays with row and column sums nondecreasing, and no adjacent elements equal.
Terms
- a(0) =333a(1) =3132a(2) =55642a(3) =566933a(4) =7169782a(5) =74939353a(6) =839537894a(7) =8735284526a(8) =93454206487a(9) =969444236906
External references
- oeis: A233030