Number of (n+1)X2 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.
A210045
Number of (n+1)X2 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) =0a(1) =9a(2) =75a(3) =475a(4) =2695a(5) =14443a(6) =74831a(7) =379459a(8) =1896807a(9) =9388731a(10) =46152447a(11) =225762931a(12) =1100476759a(13) =5350600939a(14) =25966867823a(15) =125848830499a(16) =609324773703
External references
- oeis: A210045