Number of (n+2) X 3 0..2 arrays with every 3 X 3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order.
A204146
Number of (n+2) X 3 0..2 arrays with every 3 X 3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order.
Terms
- a(0) =689a(1) =3902a(2) =22262a(3) =127022a(4) =724154a(5) =4128422a(6) =23538722a(7) =134209022a(8) =765199994a(9) =4362829142a(10) =24874945682a(11) =141826072622a(12) =808630145834
External references
- oeis: A204146