Number of (n+1)X4 0..2 arrays with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order.
A209892
Number of (n+1)X4 0..2 arrays with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order.
Terms
- a(0) =164a(1) =2304a(2) =32800a(3) =470736a(4) =6762544a(5) =97195728a(6) =1397061008a(7) =20081495760a(8) =288654902864
External references
- oeis: A209892