Number of (n+1) X (1+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

A235232

Number of (n+1) X (1+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

Terms

    a(0) =120a(1) =420a(2) =1328a(3) =4652a(4) =14944a(5) =52468a(6) =170864a(7) =601100a(8) =1980544a(9) =6979348a(10) =23223440a(11) =81953324a(12) =274931488a(13) =971325748a(14) =3280518320a(15) =11600884556a(16) =39397352128a(17) =139427487316a(18) =475663660496

External references