Number of (n+1)X3 0..3 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
A205653
Number of (n+1)X3 0..3 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors.
Terms
- a(0) =1976a(1) =12296a(2) =75108a(3) =489984a(4) =3323532a(5) =23019504a(6) =162377816a(7) =1156073240a(8) =8289295516a(9) =59533017872a(10) =428906318808
External references
- oeis: A205653