Number of (n+1) X (1+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

A235091

Number of (n+1) X (1+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

Terms

    a(0) =80a(1) =256a(2) =808a(3) =2580a(4) =8184a(5) =26164a(6) =83224a(7) =266572a(8) =849688a(9) =2726852a(10) =8707160a(11) =27993324a(12) =89526552a(13) =288291140a(14) =923287256a(15) =2977443116a(16) =9547498136a(17) =30828553348a(18) =98964094552a(19) =319913934828

External references