Number of (n+1) X 3 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to two.
A205830
Number of (n+1) X 3 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to two.
Terms
- a(0) =111a(1) =630a(2) =3642a(3) =21126a(4) =122526a(5) =710526a(6) =4120230a(7) =23892558a(8) =138549222a(9) =803425470a(10) =4658939862a(11) =27016470606a(12) =156664328166a(13) =908472171486
External references
- oeis: A205830