Number of (n+1) X 3 0..1 arrays with every 2 X 2 subblock having the same number of equal edges, and new values 0..1 introduced in row major order.
A205312
Number of (n+1) X 3 0..1 arrays with every 2 X 2 subblock having the same number of equal edges, and new values 0..1 introduced in row major order.
Terms
- a(0) =20a(1) =84a(2) =376a(3) =1708a(4) =7784a(5) =35500a(6) =161928a(7) =738636a(8) =3369320a(9) =15369324a(10) =70107976a(11) =319801228a(12) =1458790184a(13) =6654348460a(14) =30354161928a(15) =138462112716a(16) =631602239720
External references
- oeis: A205312