Number of (n+1) X 3 0..3 arrays with every 2 X 2 subblock having the same number of equal diagonal or antidiagonal elements, and new values 0..3 introduced in row major order.
A206377
Number of (n+1) X 3 0..3 arrays with every 2 X 2 subblock having the same number of equal diagonal or antidiagonal elements, and new values 0..3 introduced in row major order.
Terms
- a(0) =85a(1) =1369a(2) =25945a(3) =520097a(4) =10690969a(5) =222329489a(6) =4648291369a(7) =97418918945
External references
- oeis: A206377