Number of (n+1)X3 0..2 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors.
A206122
Number of (n+1)X3 0..2 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors.
Terms
- a(0) =170a(1) =798a(2) =3692a(3) =18572a(4) =93582a(5) =491162a(6) =2591052a(7) =13911368a(8) =74969572a(9) =406919686a(10) =2213161518a(11) =12071381806a(12) =65906319904a(13) =360238467670
External references
- oeis: A206122