Number of (n+1)X4 0..3 arrays with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order.
A210056
Number of (n+1)X4 0..3 arrays with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order.
Terms
- a(0) =323a(1) =8767a(2) =249327a(3) =7293673a(4) =216648913a(5) =6488330257a(6) =195167694929
External references
- oeis: A210056