Number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having one or three distinct values, and new values 0..2 introduced in row major order.
A210101
Number of (n+1) X 3 0..2 arrays with every 2 X 2 subblock having one or three distinct values, and new values 0..2 introduced in row major order.
Terms
- a(0) =30a(1) =225a(2) =1690a(3) =12725a(4) =95830a(5) =721705a(6) =5435250a(7) =40933565a(8) =308275950a(9) =2321665905a(10) =17484765130a(11) =131680019525a(12) =991699197190
External references
- oeis: A210101