Number of (n+1)X4 0..2 arrays containing all values 0..2 with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order.
A210047
Number of (n+1)X4 0..2 arrays containing all values 0..2 with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order.
Terms
- a(0) =75a(1) =1271a(2) =20871a(3) =332891a(4) =5169813a(5) =78792305a(6) =1184416509a(7) =17624469579a(8) =260264902127
External references
- oeis: A210047