Number of n X 3 0..3 arrays with row sums equal and column sums equal.

A202681

Number of n X 3 0..3 arrays with row sums equal and column sums equal.

Terms

    a(0) =4a(1) =16a(2) =340a(3) =832a(4) =6784a(5) =224764a(6) =496276a(7) =4373632a(8) =231072928a(9) =353406676a(10) =3224421556a(11) =280342927660a(12) =274352334052

External references